“Most people need way more protein than the guidelines say.”
Strong confidence because the adult protein RDA is designed to meet the needs of nearly all healthy adults, so “most people need way more” is not supported. Higher intakes can improve lean mass or strength in specific settings, with diminishing returns and needs that vary by age, activity, illness and energy intake.
Most people do not need way more protein than guidelines recommend. The adult RDA of 0.8 g/kg/day is intended to cover nearly all healthy adults, not merely prevent obvious deficiency. Some people benefit from more, including many older adults, people doing resistance training and people trying to preserve lean mass during weight loss or illness.
Protein needs are a range, not one universal target. Training, aging, pregnancy, recovery, total calories and kidney or liver disease can change the appropriate amount. More protein produces small additional muscle benefits in many trials, especially alongside resistance exercise, but benefit does not rise without limit.
More protein helps only up to a point. Once you get enough for your needs, more does not keep adding the same benefit.
Can protein support muscle and fullness?
Enough protein helps build and keep muscle, supports fullness and can help protect lean mass during weight loss.
Safety note: Very high-protein diets can crowd out fiber-rich foods and may be inappropriate with some kidney, liver or metabolic conditions. Supplements can also add cost or contaminants and are rarely required to meet ordinary needs.
Talk to a healthcare professional if: Ask a clinician or dietitian before substantially increasing protein if you have chronic kidney or liver disease, are pregnant, are recovering from major illness, or have difficulty maintaining weight or muscle.
Many adults can meet their needs with ordinary meals. A higher target may be useful for a defined goal or condition, but “way more” is not a rule for everyone.
Estimate your usual intake and goal before buying supplements. If you need more, add a practical protein food to the meal that contains the least.