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All claims

Browse every claim we’ve checked.

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Filter by verdict
Nutrition

“High-fructose corn syrup is worse for you than regular sugar.”

False Strong See the evidence
Nutrition

“Ultra-processed foods are toxic.”

False Strong See the evidence
Weight Loss & Metabolism

“GLP-1 drugs like Ozempic, Wegovy, and Zepbound work for weight loss.”

True Strong See the evidence
Nutrition

“Seed oils are toxic and cause inflammation.”

False Strong See the evidence
Nutrition

“Most people need way more protein than the guidelines say.”

Mostly false Strong See the evidence
Nutrition

“Artificial sweeteners are unsafe.”

False Moderate See the evidence
Nutrition

“Diet soda is worse for you than regular soda.”

False Moderate See the evidence
Weight Loss & Metabolism

“Intermittent fasting is better for weight loss than a regular calorie-controlled diet.”

Mostly false Moderate See the evidence
Alcohol & Substances

“A drink or two a day is fine for your health, or even good for it.”

Mostly false Strong See the evidence
Nutrition

“Red meat is bad for you.”

Mostly false Limited See the evidence
NutritionHeart & Metabolic Health

“Eggs raise your cholesterol and increase your risk of heart disease.”

Mostly false Moderate See the evidence
NutritionHeart & Metabolic Health

“Whole milk and other full-fat dairy are bad for your heart.”

Mostly false Moderate See the evidence
NutritionHeart & Metabolic Health

“You should avoid all fat to protect your heart.”

False Strong See the evidence
Weight Loss & Metabolism

“Eating fat makes you fat.”

Mostly false Strong See the evidence
Nutrition

“Low-fat foods are healthier than full-fat foods.”

It depends Moderate See the evidence
NutritionHeart & Metabolic Health

“Coconut oil is good for your heart.”

False Moderate See the evidence
Nutrition

“Fiber matters more than almost anything else in your diet.”

Overhyped Moderate See the evidence
NutritionHeart & Metabolic Health

“You need to strictly limit salt to stay healthy.”

It depends Moderate See the evidence
Nutrition

“Coffee and caffeine are bad for your health.”

Mostly false Moderate See the evidence
NutritionPublic Health & Prevention

“Artificial food dyes are dangerous, especially for kids.”

Mostly false Moderate See the evidence
NutritionPublic Health & Prevention

“Raw milk is healthier than pasteurized milk.”

False Strong See the evidence
Nutrition

“One diet is clearly best for most people.”

False Moderate See the evidence
Weight Loss & Metabolism

“Calories don’t matter for weight loss if you eat healthy foods.”

False Strong See the evidence
Supplements

“Most people need lots of supplements to be healthy.”

False Strong See the evidence
SupplementsMovement

“Creatine is safe and works for building muscle and improving performance.”

Mostly true Strong See the evidence
Supplements

“Most people should take vitamin D.”

Mostly false Moderate See the evidence
Supplements

“Most people should take fish oil or omega-3 supplements.”

Mostly false Moderate See the evidence
SupplementsMental Health

“Magnesium is a powerful fix for stress and muscle cramps.”

Overhyped Limited See the evidence
Supplements

“Multivitamins improve the health of most healthy people.”

Mostly false Moderate See the evidence
Nutrition

“Breakfast is the most important meal of the day.”

False Moderate See the evidence
Nutrition

“Organic food is more nutritious than conventional food.”

Mostly false Limited See the evidence
Weight Loss & Metabolism

“Apple cider vinegar helps you lose weight.”

Not enough evidence Limited See the evidence
NutritionHeart & Metabolic Health

“Apple cider vinegar lowers the blood sugar spike after a meal.”

Mostly true Limited See the evidence
Men's HealthHormones

“Eating soy lowers testosterone in men.”

False Strong See the evidence
Nutrition

“Non-celiac gluten sensitivity is a real medical condition.”

Mostly true Limited See the evidence
Nutrition

“Dairy causes inflammation in the body.”

Mostly false Moderate See the evidence
Nutrition

“MSG is bad for you and causes headaches.”

Mostly false Moderate See the evidence
Weight Loss & MetabolismSupplements

“Fat-burner supplements help you lose body fat.”

Mostly false Moderate See the evidence
Nutrition

“Natural sweeteners are healthier than artificial sweeteners.”

Mostly false Moderate See the evidence
Nutrition

“Detox diets and cleanses remove toxins from your body.”

False Moderate See the evidence
NutritionHormones

“Eating beans balances your hormones.”

Not enough evidence Moderate See the evidence
Nutrition

“Parasite cleanses remove hidden parasites causing bloating and fatigue.”

False Strong See the evidence
Nutrition

“Bananas ruin the antioxidants in berry smoothies.”

Overhyped Limited See the evidence
Nutrition

“Fresh vegetables are always more nutritious than frozen ones.”

False Moderate See the evidence
Nutrition

“Snacking between meals is bad for you.”

It depends Limited See the evidence
Weight Loss & Metabolism

“Eating late at night makes you gain weight.”

It depends Limited See the evidence
Nutrition

“Juicing fruits and vegetables is healthier than eating them whole.”

Mostly false Moderate See the evidence
Nutrition

“Brown rice and whole-wheat bread are healthier than white versions.”

Mostly true Moderate See the evidence
Supplements

“Taking vitamin C prevents the common cold.”

Mostly false Moderate See the evidence
Weight Loss & Metabolism

“Green tea meaningfully boosts your metabolism.”

Mostly false Moderate See the evidence
Weight Loss & Metabolism

“Negative-calorie foods like celery burn more calories than they contain.”

False Strong See the evidence
Weight Loss & Metabolism

“Drinking ice-cold water helps you burn extra calories.”

Overhyped Moderate See the evidence
Nutrition

“Everyone needs eight glasses of water a day.”

False Strong See the evidence
Nutrition

“Brown eggs are healthier than white eggs.”

False Strong See the evidence
Alcohol & Substances

“Nicotine itself is harmful even if you don’t smoke it.”

Mostly true Strong See the evidence
Alcohol & Substances

“Marijuana is basically harmless since it's natural.”

False Strong See the evidence
SupplementsMental Health

“Ashwagandha meaningfully reduces stress.”

Mostly true Moderate See the evidence
SupplementsLongevity & Biohacking

“NMN and NR supplements slow aging.”

Not enough evidence Limited See the evidence
Supplements

“BPC-157 and similar peptides are safe and help injuries heal.”

Not enough evidence Limited See the evidence
Supplements

“IV vitamin drips at wellness clinics improve your health.”

Mostly false Limited See the evidence
Weight Loss & Metabolism

“Akkermansia probiotics help with weight loss and metabolism.”

Not enough evidence Limited See the evidence
Supplements

“Greens powders can replace vegetables.”

Mostly false Moderate See the evidence
Weight Loss & MetabolismSupplements

“Berberine works as well as Ozempic for weight loss and blood sugar.”

Mostly false Moderate See the evidence
SupplementsSkin & Beauty

“Collagen supplements improve skin.”

Not enough evidence Limited See the evidence
SupplementsSkin & Beauty

“Astaxanthin works like an internal sunscreen and slows skin aging.”

Overhyped Limited See the evidence
MovementLongevity & Biohacking

“Strength training only helps how you look, not how long you live.”

False Moderate See the evidence
MovementLongevity & Biohacking

“Zone 2 cardio is the best exercise for health and longevity.”

Overhyped Moderate See the evidence
MovementLongevity & Biohacking

“VO2 max is the single best predictor of how long you’ll live.”

Overhyped Moderate See the evidence
Movement

“You need to walk 10,000 steps a day for good health.”

False Strong See the evidence
Movement

“You need at least an hour of exercise every day to be healthy.”

False Strong See the evidence
Movement

“HIIT is better than steady cardio.”

It depends Moderate See the evidence
Movement

“Sitting is as dangerous as smoking.”

Overhyped Moderate See the evidence
Weight Loss & MetabolismMovement

“Everyday movement like walking and fidgeting meaningfully affects your weight.”

Mostly true Moderate See the evidence
Movement

“Stretching before a workout prevents injuries.”

Mostly false Moderate See the evidence
MovementWomen's Health

“Lifting weights will make women bulky.”

False Moderate See the evidence
Weight Loss & Metabolism

“GLP-1 weight-loss drugs cause muscle loss.”

It depends Moderate See the evidence
Movement

“If you’re not sore after a workout, it didn’t work.”

False Moderate See the evidence
Movement

“You can't build meaningful muscle after a certain age.”

False Strong See the evidence
Movement

“Lifting weights is dangerous for older adults.”

False Moderate See the evidence
Movement

“Running ruins your knees and causes arthritis.”

False Strong See the evidence
MovementLongevity & Biohacking

“Grip strength predicts how long you'll live.”

Mostly true Strong See the evidence
Weight Loss & MetabolismMovement

“Fasted cardio burns more fat.”

Overhyped Moderate See the evidence
MovementHeart & Metabolic Health

“Taking a walk after eating helps control blood sugar.”

True Strong See the evidence
MovementWeight Loss & Metabolism

“Rucking is much better than regular walking for fitness and fat loss.”

Overhyped Limited See the evidence
Weight Loss & MetabolismMovement

“Sweating more during a workout means you're burning more fat.”

False Strong See the evidence
Movement

“Muscle turns into fat when you stop working out.”

False Strong See the evidence
Weight Loss & MetabolismMovement

“Crunches and ab exercises burn belly fat.”

Mostly false Moderate See the evidence
Movement

“Free weights build more muscle than weight machines.”

Mostly false Moderate See the evidence
Sleep

“Everyone needs at least eight hours of sleep a night.”

Mostly false Strong See the evidence
Sleep

“How long you sleep matters more than keeping a regular sleep schedule.”

Mostly false Moderate See the evidence
Sleep

“Sleep trackers accurately tell you how well you slept.”

It depends Moderate See the evidence
SleepSupplements

“Melatonin works well for most sleep problems.”

Mostly false Moderate See the evidence
SleepSupplements

“Magnesium helps you sleep better.”

Not enough evidence Limited See the evidence
Sleep

“Mouth taping is safe and improves sleep.”

Not enough evidence Limited See the evidence
Sleep

“Screens and blue light before bed ruin your sleep.”

Overhyped Moderate See the evidence
Sleep

“You need to stop caffeine several hours before bed to protect your sleep.”

True Moderate See the evidence
Alcohol & SubstancesSleep

“A drink before bed helps you sleep better.”

False Strong See the evidence
Sleep

“Napping during the day is bad for you.”

It depends Moderate See the evidence
Sleep

“Sleep apnea is common and can seriously affect your health.”

True Strong See the evidence
Sleep

“Your bedroom temperature and setup affect how well you sleep.”

True Moderate See the evidence
SleepMental Health

“A therapy called CBT-I is the best treatment for long-term insomnia.”

True Strong See the evidence
Sleep

“Changing your sleep schedule a lot on weekends can hurt your health.”

Mostly true Moderate See the evidence
Sleep

“You can fully catch up on lost sleep by sleeping in later.”

It depends Moderate See the evidence
Women's HealthSleep

“Perimenopause can disrupt sleep.”

True Strong See the evidence
SleepWeight Loss & Metabolism

“Sleeping less makes you eat more the next day.”

Mostly true Moderate See the evidence
Sleep

“Getting morning sunlight helps you sleep better at night.”

Mostly true Moderate See the evidence
Sleep

“Sleep medicines like Ambien are safe to take regularly.”

It depends Moderate See the evidence
Sleep

“The Sleepy Girl Mocktail dramatically improves sleep.”

Overhyped Limited See the evidence
Sleep

“Sleepmaxxing gadgets and tricks dramatically improve sleep.”

Overhyped Limited See the evidence
Mental Health

“Social media and smartphones are causing the teen mental health crisis.”

Not enough evidence Moderate See the evidence
Mental HealthMovement

“Exercise can treat depression and anxiety.”

True Moderate See the evidence
Mental Health

“Loneliness can hurt your physical health, not just your mood.”

True Moderate See the evidence
Mental Health

“Mindfulness meditation improves mental health.”

Mostly true Moderate See the evidence
Mental Health

“Prayer can improve mental health.”

Not enough evidence Limited See the evidence
Mental Health

“Therapy works for many mental health problems.”

True Strong See the evidence
Mental Health

“Antidepressants can help treat depression.”

True Strong See the evidence
Mental Health

“Spending time in nature improves your health.”

Mostly true Moderate See the evidence
Mental Health

“Gratitude journaling can improve wellbeing.”

Mostly true Moderate See the evidence
Mental Health

“Breathwork reduces stress and anxiety.”

Mostly true Moderate See the evidence
Mental HealthSleep

“Poor sleep can worsen mental health.”

True Strong See the evidence
Mental HealthSupplements

“Probiotics can improve mood and anxiety.”

Not enough evidence Limited See the evidence
Mental Health

“Psilocybin is a proven treatment for depression.”

Overhyped Moderate See the evidence
Mental Health

“Burnout is different from ordinary tiredness and depression.”

It depends Limited See the evidence
Mental Health

“A "dopamine detox" resets your brain's reward system.”

False Moderate See the evidence
Mental HealthHormones

“Everyday stress causes 'cortisol face' or a puffy face.”

Mostly false Moderate See the evidence
Women's HealthMovement

“You should change your workouts and diet based on your menstrual cycle.”

Not enough evidence Moderate See the evidence
Mental Health

“You can diagnose yourself with ADHD from social media videos.”

False Strong See the evidence
Mental Health

“Social-media labels can reliably diagnose someone as a “narcissist” or fixed “avoidant” attachment type.”

Mostly false Moderate See the evidence
Mental Health

“Social media is making adults more anxious and depressed.”

Overhyped Moderate See the evidence
Mental Health

“Prescription stimulants reduce ADHD symptoms in adults with ADHD.”

True Strong See the evidence
Mental Health

“ADHD stimulants are completely safe for your heart long term.”

False Moderate See the evidence
Women's HealthHormones

“Menopause hormone therapy is safe and worth it for most women.”

It depends Strong See the evidence
Longevity & BiohackingHeart & Metabolic Health

“Healthy people without diabetes benefit from using a continuous glucose monitor.”

Not enough evidence Limited See the evidence
Women's HealthHormones

“Menopause makes women gain weight even if they don’t eat more.”

It depends Moderate See the evidence
HormonesNutrition

“"Cortisol cocktails" lower cortisol levels.”

Not enough evidence Limited See the evidence
Skin & Beauty

“Sunscreen is toxic or causes cancer.”

False Strong See the evidence
Skin & Beauty

“Red light therapy improves skin.”

Mostly true Limited See the evidence
Women's HealthHormones

“Perineum sunning boosts energy and hormones.”

Not enough evidence Limited See the evidence
Skin & Beauty

“Lymphatic drainage detoxes your body and helps you lose weight.”

Overhyped Limited See the evidence
Women's Health

“Vaginal probiotics treat an active case of bacterial vaginosis.”

Not enough evidence Limited See the evidence
Skin & Beauty

“Beef tallow is better for your skin than conventional moisturizers.”

Not enough evidence Limited See the evidence
Dental Health

“Chronic mouth breathing in childhood is associated with altered facial growth and dental malocclusion.”

Mostly true Moderate See the evidence
Skin & BeautyNutrition

“Drinking a gallon of water a day gives you clear skin.”

False Moderate See the evidence
Longevity & Biohacking

“Biohacks can meaningfully extend your lifespan.”

Not enough evidence Insufficient/Conflicting See the evidence
Longevity & Biohacking

“Cold plunges provide major health benefits.”

Overhyped Moderate See the evidence
Longevity & Biohacking

“Regular sauna use is associated with lower cardiovascular and all-cause mortality and may improve some health markers.”

Mostly true Moderate See the evidence
Weight Loss & Metabolism

“Losing weight permanently damages your metabolism.”

False Moderate See the evidence
Longevity & Biohacking

“Fasting triggers autophagy in a way that gives you special health benefits.”

Not enough evidence Limited See the evidence
Longevity & Biohacking

“The Blue Zones are a reliable guide to living longer.”

Not enough evidence Limited See the evidence
Longevity & Biohacking

“Biological age tests can accurately tell you how fast you’re aging.”

Mostly false Moderate See the evidence
Longevity & Biohacking

“Rapamycin slows aging in healthy people.”

Not enough evidence Limited See the evidence
Longevity & Biohacking

“Metformin slows aging in healthy people.”

Not enough evidence Limited See the evidence
Longevity & Biohacking

“HBOT slows aging, improves brain function, and speeds recovery in healthy people.”

Not enough evidence Limited See the evidence
Longevity & Biohacking

“HBOT is an effective treatment for selected medical conditions.”

True Strong See the evidence
Public Health & Prevention

“Microplastics in food and the environment are harming your health.”

Not enough evidence Limited See the evidence
Public Health & PreventionDental Health

“Fluoride in drinking water lowers kids’ IQ.”

It depends Moderate See the evidence
Longevity & Biohacking

“Grounding or earthing improves your health.”

Not enough evidence Limited See the evidence
Longevity & Biohacking

“Consumer health wearables provide accurate, useful health data.”

It depends Moderate See the evidence
Weight Loss & Metabolism

“A person at a higher body weight cannot be healthy.”

False Moderate See the evidence
Dental Health

“Cleaning between the teeth with floss or another suitable device improves dental health.”

Mostly true Moderate See the evidence
Dental Health

“Mouthwash can replace brushing and flossing.”

False Moderate See the evidence
Dental Health

“Some over-the-counter peroxide whitening products can whiten natural teeth in the short term.”

Mostly true Moderate See the evidence
Public Health & Prevention

“Antibiotics help treat colds and the flu.”

False Strong See the evidence
Heart & Metabolic Health

“Statins lower the risk of heart attacks and strokes.”

True Strong See the evidence
Alcohol & Substances

“Greasy food cures a hangover.”

False Moderate See the evidence
Alcohol & Substances

“Drinking more alcohol the next day cures a hangover.”

False Moderate See the evidence
Alcohol & SubstancesSupplements

“IV vitamin drips cure hangovers.”

False Moderate See the evidence
Skin & Beauty

“Minoxidil regrows hair.”

Mostly true Strong See the evidence
Skin & BeautySupplements

“Biotin supplements regrow hair.”

Mostly false Moderate See the evidence
Public Health & Prevention

“Everyday 5G and Wi-Fi exposure within public limits has been shown to cause health problems.”

False Moderate See the evidence
Movement

“Good posture prevents back pain.”

Not enough evidence Limited See the evidence
Public Health & Prevention

“The flu shot can give you the flu.”

False Strong See the evidence
Skin & Beauty

“Topical retinoids can reduce acne and some signs of photoaging.”

Mostly true Strong See the evidence
Skin & Beauty

“A well-formulated topical vitamin C product can modestly improve some pigmentation and photoaging signs.”

Mostly true Moderate See the evidence
Skin & Beauty

“Some topical niacinamide products can modestly improve skin barrier function, uneven tone or photoaging signs.”

Mostly true Moderate See the evidence
Women's HealthHormones

“Birth control pills cause major weight gain for most women.”

False Moderate See the evidence
Women's Health

“Severe PMS is just something women have to live with.”

False Strong See the evidence
Men's HealthHormones

“Erectile dysfunction usually means low testosterone.”

Mostly false Moderate See the evidence
Men's HealthHormones

“Every older man with low testosterone needs treatment.”

False Strong See the evidence
Heart & Metabolic Health

“LDL cholesterol doesn’t cause heart disease.”

False Strong See the evidence
Heart & Metabolic Health

“ApoB predicts heart risk better than LDL cholesterol.”

Mostly true Moderate See the evidence
Heart & Metabolic Health

“Lp(a) raises heart disease risk even if your regular cholesterol looks normal.”

True Strong See the evidence
Heart & Metabolic Health

“Slightly high blood pressure is harmless if you feel fine.”

False Strong See the evidence
Heart & Metabolic Health

“Prediabetes doesn’t matter unless it turns into diabetes.”

False Strong See the evidence
Women's Health

“Vaginal probiotics can help prevent recurrent bacterial vaginosis.”

It depends Moderate See the evidence
SleepHormones

“Scientists know exactly how sleep loss changes your hunger hormones.”

Mostly false Limited See the evidence
Weight Loss & Metabolism

“GLP-1 weight-loss drugs have no major downsides.”

False Strong See the evidence
Nutrition

“Ultra-processed foods make it easier to overeat.”

Mostly true Moderate See the evidence
Nutrition

“Regularly eating more processed meat increases health risk.”

Mostly true Moderate See the evidence
Nutrition

“Honey, maple syrup, agave and similar “natural” caloric sweeteners are substantially healthier than table sugar.”

Mostly false Moderate See the evidence
Weight Loss & MetabolismNutrition

“Eating beans, lentils or other pulses can modestly support weight loss.”

Mostly true Moderate See the evidence
Weight Loss & Metabolism

“Lemon water meaningfully boosts your metabolism.”

Mostly false Limited See the evidence
Supplements

“Some collagen supplements can modestly reduce osteoarthritis joint pain.”

Mostly true Moderate See the evidence
Movement

“Stretching after a workout prevents next-day soreness.”

False Strong See the evidence
SleepSupplements

“Melatonin is safe to take regularly.”

It depends Limited See the evidence
Mental Health

“Depression is caused by a simple chemical imbalance in the brain.”

False Strong See the evidence
Mental Health

“MDMA is a proven treatment for PTSD.”

Overhyped Moderate See the evidence
Men's HealthHormones

“Testosterone therapy is safe and worth it for most men with low testosterone.”

It depends Strong See the evidence
Women's Health

“Vaginal probiotics treat an active yeast infection.”

Not enough evidence Limited See the evidence
Heart & Metabolic Health

“Statin side effects are much more common than clinical trials show.”

Mostly false Strong See the evidence
Men's HealthSkin & Beauty

“Finasteride can slow loss and regrow some hair in men with androgenetic alopecia.”

Mostly true Moderate See the evidence
Public Health & Prevention

“Seasonal flu vaccination provides little meaningful protection.”

Mostly false Moderate See the evidence
Women's HealthHormones

“Birth control pills cause major mood changes for most women.”

Mostly false Moderate See the evidence
Heart & Metabolic Health

“Most adults should have Lp(a) checked at least once.”

True Moderate See the evidence
Women's Health

“Vaginal probiotics can help prevent recurrent yeast infections.”

Not enough evidence Limited See the evidence
Public Health & Prevention

“Vaccines cause autism.”

False Strong See the evidence
HormonesWeight Loss & Metabolism

“High cortisol is why you have stubborn belly fat.”

Mostly false Moderate See the evidence
Women's HealthHormones

“Seed cycling balances your hormones.”

Not enough evidence Limited See the evidence
Weight Loss & MetabolismMovement

“Cardio is the best exercise for weight loss.”

It depends Moderate See the evidence
Movement

“Walking doesn’t count as real exercise.”

False Strong See the evidence
Nutrition

“You can’t be healthy if you eat fast food.”

False Moderate See the evidence
Weight Loss & Metabolism

“You can’t lose weight if you eat fast food.”

False Strong See the evidence
Nutrition

“Processed foods are unhealthy.”

False Strong See the evidence
Nutrition

“You have to eat “clean” to be healthy.”

False Strong See the evidence
Weight Loss & Metabolism

“Carbs make you fat.”

False Strong See the evidence
Weight Loss & Metabolism

“Cutting carbs is the fastest way to lose weight.”

Mostly false Moderate See the evidence
Nutrition

“Sugar is toxic.”

False Strong See the evidence
NutritionHeart & Metabolic Health

“Eating sugar causes diabetes.”

Mostly false Moderate See the evidence
Nutrition

“Fruit has too much sugar to be healthy.”

False Strong See the evidence
Nutrition

“Honey is healthier than regular sugar.”

Mostly false Moderate See the evidence
Nutrition

“Sea salt is healthier than table salt.”

False Strong See the evidence
Nutrition

“Gluten-free foods are healthier for everyone.”

False Strong See the evidence
Weight Loss & Metabolism

“Skipping meals slows your metabolism.”

Mostly false Moderate See the evidence
Supplements

“A multivitamin can make up for a poor diet.”

False Strong See the evidence
Nutrition

“If you can’t pronounce an ingredient, you shouldn’t eat it.”

False Strong See the evidence
Nutrition

“Natural foods and ingredients are always safer and healthier.”

False Strong See the evidence
Nutrition

“Food preservatives are toxic.”

False Moderate See the evidence
Nutrition

“Beef tallow is healthier than seed oils for cooking.”

False Moderate See the evidence
Supplements

“Creatine damages your kidneys.”

False Moderate See the evidence
SupplementsSkin & Beauty

“Creatine causes hair loss.”

Mostly false Moderate See the evidence
Supplements

“High-dose vitamin D prevents major diseases.”

Mostly false Strong See the evidence
Weight Loss & Metabolism

“Being thin means you’re healthy.”

False Strong See the evidence
Skin & Beauty

“Sunscreen causes vitamin D deficiency.”

It depends Moderate See the evidence
Sleep

“Waking up early is healthier than sleeping later.”

It depends Moderate See the evidence
Sleep

“You can train yourself to need less sleep.”

False Strong See the evidence
Sleep

“Blue-light-blocking glasses meaningfully improve sleep.”

Not enough evidence Limited See the evidence
Supplements

“Everyone should take a probiotic.”

False Strong See the evidence
Supplements

“Zinc prevents or shortens colds.”

It depends Limited See the evidence
Nutrition

“Fast food doesn’t mold because it’s full of harmful chemicals.”

False Strong See the evidence
Nutrition

“Chemicals in food are bad for you.”

False Strong See the evidence
Nutrition

“A food is unhealthy if it has more than five ingredients.”

False Strong See the evidence
Nutrition

“Organic, raw or coconut sugar is healthier than regular sugar.”

Mostly false Strong See the evidence
Nutrition

“Food in Europe is healthier because Europe bans ingredients that the United States allows.”

Mostly false Moderate See the evidence
Nutrition

“Bread, pasta and sweets in Europe do not affect your body the way American versions do.”

False Moderate See the evidence
Nutrition

“Humans are not supposed to drink milk after infancy.”

False Strong See the evidence
Nutrition

“Lectins and antinutrients make beans, lentils and chickpeas harmful.”

Mostly false Strong See the evidence
Nutrition

“Whole grains are inflammatory and damage the gut.”

False Moderate See the evidence
Nutrition

“Potatoes are basically sugar and cause insulin resistance.”

False Moderate See the evidence
Nutrition

“Tomatoes, peppers, eggplant and potatoes are inflammatory because they are nightshades.”

Mostly false Limited See the evidence
Nutrition

“Pork is uniquely toxic or unhealthy.”

False Moderate See the evidence
Nutrition

“Conventionally raised chicken is inherently unhealthy.”

False Moderate See the evidence
NutritionPublic Health & Prevention

“Arsenic makes rice poisonous and unsafe to eat.”

Mostly false Strong See the evidence
Nutrition

“Corn is inflammatory, basically sugar and nutritionally worthless.”

False Moderate See the evidence
NutritionHormones

“Soy is harmful because phytoestrogens disrupt human hormones.”

False Strong See the evidence
Nutrition

“Peanuts are unhealthy because of aflatoxins, lectins and omega-6 fats.”

Mostly false Moderate See the evidence
Nutrition

“Antinutrients make nuts and seeds toxic.”

False Strong See the evidence
Nutrition

“Oxalates make spinach dangerous for everyone.”

Mostly false Moderate See the evidence
NutritionHormones

“Broccoli and other cruciferous vegetables harm the thyroid.”

Mostly false Moderate See the evidence
Nutrition

“Carrots have too much sugar to be healthy.”

False Strong See the evidence
Nutrition

“Oats are bad for you because of gluten, avenin, phytic acid or blood-sugar spikes.”

Mostly false Moderate See the evidence
Nutrition

“Mushrooms are hard to digest and not meant for humans.”

False Limited See the evidence
Nutrition

“Fermented foods are harmful because of histamine, microbes and fermentation byproducts.”

False Moderate See the evidence
Nutrition

“Tea is unhealthy because caffeine, tannins and oxalates deplete nutrients or harm the body.”

False Moderate See the evidence
Nutrition

“Olive oil is unhealthy because it is processed fat.”

False Strong See the evidence
Nutrition

“Avocados are unhealthy because they are high in fat.”

False Moderate See the evidence
Nutrition

“Bananas have too much sugar to be healthy.”

False Strong See the evidence
Nutrition

“Dried fruit is basically candy and is unhealthy.”

Mostly false Moderate See the evidence
Nutrition

“Chili peppers damage the gut.”

False Limited See the evidence
Nutrition

“Garlic and onions are inflammatory and unhealthy.”

False Moderate See the evidence
Nutrition

“Watermelon has too much sugar to be healthy.”

False Strong See the evidence
Nutrition

“People should avoid all animal foods to be healthy.”

False Strong See the evidence
Nutrition

“Plant foods are unnecessary and potentially harmful.”

False Strong See the evidence
Nutrition

“If a food contains an antinutrient or a potentially harmful compound, the food is toxic.”

False Strong See the evidence
Nutrition

“If a food raises blood sugar or insulin, it is unhealthy.”

False Strong See the evidence
Nutrition

“Foods humans did not evolve to eat are unhealthy.”

False Strong See the evidence
Nutrition

“If a food causes symptoms in some people, everyone should avoid it.”

False Strong See the evidence
Nutrition

“Calling a food inflammatory or gut-damaging proves it is unhealthy.”

False Strong See the evidence
NutritionPublic Health & Prevention

“GMO foods are unsafe to eat.”

False Strong See the evidence
NutritionPublic Health & Prevention

“GMOs cause cancer.”

False Strong See the evidence
Nutrition

“Non-GMO foods are healthier.”

False Strong See the evidence
NutritionPublic Health & Prevention

“GMO foods cause allergies.”

False Strong See the evidence
Nutrition

“Eating GMO food changes your DNA.”

False Strong See the evidence
NutritionPublic Health & Prevention

“Glyphosate residues on food make it dangerous.”

Mostly false Moderate See the evidence
Men's HealthSupplements

“Testosterone booster supplements work.”

Mostly false Moderate See the evidence
Men's HealthPublic Health & Prevention

“Every man over 50 needs PSA screening.”

Mostly false Strong See the evidence
Men's Health

“Frequent ejaculation changes prostate cancer risk.”

Not enough evidence Limited See the evidence
Men's HealthSupplements

“Saw palmetto helps an enlarged prostate.”

Mostly false Strong See the evidence
Men's Health

“Mobile phones lower sperm count.”

Not enough evidence Insufficient/Conflicting See the evidence
Men's Health

“Using a laptop on your lap lowers sperm count.”

Not enough evidence Limited See the evidence
Men's Health

“Tight underwear lowers sperm count.”

Not enough evidence Limited See the evidence
Men's HealthPublic Health & Prevention

“Sperm counts are collapsing worldwide.”

Overhyped Moderate See the evidence
Men's HealthHormones

“Male menopause is real.”

Mostly false Moderate See the evidence
Men's Health

“Vasectomy raises prostate cancer risk.”

Mostly false Moderate See the evidence
Hormones

“Adrenal fatigue is a real diagnosis.”

False Moderate See the evidence
HormonesWomen's Health

“Estrogen dominance causes most women's symptoms.”

Mostly false Moderate See the evidence
Hormones

“At-home saliva hormone tests can guide treatment.”

It depends Moderate See the evidence
Hormones

“Natural desiccated thyroid is better than levothyroxine.”

Mostly false Moderate See the evidence
HormonesPublic Health & Prevention

“Plastics such as BPA and phthalates wreck your hormones.”

Overhyped Moderate See the evidence
HormonesNutrition

“Kelp or iodine supplements support the thyroid.”

It depends Strong See the evidence
Hormones

“A liver detox balances hormones.”

Not enough evidence Limited See the evidence
Dental HealthPublic Health & Prevention

“Fluoride toothpaste prevents cavities.”

True Strong See the evidence
Dental Health

“Electric toothbrushes clean better than manual ones.”

Mostly true Moderate See the evidence
Dental Health

“Oil pulling improves oral health.”

Not enough evidence Limited See the evidence
Dental Health

“Charcoal toothpaste whitens teeth safely.”

Not enough evidence Limited See the evidence
Dental HealthPublic Health & Prevention

“Silver amalgam fillings make you sick.”

Mostly false Moderate See the evidence
Dental HealthPublic Health & Prevention

“Root canals cause disease elsewhere in the body.”

False Moderate See the evidence
Dental Health

“You should brush right after eating.”

It depends Moderate See the evidence
Dental HealthNutrition

“Sugar-free xylitol gum helps your teeth.”

Mostly true Moderate See the evidence
Dental HealthHeart & Metabolic Health

“Gum disease raises heart disease risk.”

Not enough evidence Limited See the evidence
Dental Health

“Sugar-free gum helps your teeth.”

True Moderate See the evidence
No claims match here yet. Suggest one?