Browse evidence-based analysis of health-related claims and assertions
Log in to see full claim details, scientific mechanisms, and cited studies.
For older women with muscle loss, eating more protein—1.2 grams per kilogram of body weight per day instead of 0.8 grams—over 12 weeks leads to bigger gains in muscle size and strength.
In older women with muscle loss, increasing daily protein intake from 0.8 to 1.2 grams per kilogram of body weight for 12 weeks leads to a measurable decrease in fat deposits within and around the...
For older women with muscle loss, increasing daily protein intake from 0.8 to 1.2 grams per kilogram of body weight for 12 weeks leads to measurable improvements in handgrip strength and knee flexion...
In older women with muscle loss, eating more protein each day for 12 weeks leads to a larger decrease in body fat and waist size compared to eating the standard amount of protein.
For women aged 60 to 75 with muscle loss due to aging, consuming more protein each day for 12 weeks leads to measurable increases in thigh and calf muscle size, stronger hand and knee muscles, and...
In junior female wrestlers, taking 10 grams of creatine daily for six weeks along with strength training did not change body fat or lean muscle mass, meaning any weight gain was likely from other...
In junior female wrestlers, taking 10 grams of creatine monohydrate daily for six weeks along with strength training led to an increase in body weight and BMI, but this was due to water retention,...
Junior female wrestlers who took 10 grams of creatine monohydrate daily for six weeks while doing strength training showed a 12.2% improvement in muscular power on the Sargent jump test, compared to...
Junior female wrestlers who took 10 grams of creatine monohydrate daily for six weeks while doing strength training showed a 4.5% improvement in agility test scores, while those who only did strength...
In young female wrestlers aged 18–19, taking 10 grams of creatine monohydrate daily on training days along with strength training leads to measurable increases in maximum strength and muscle size in...
Among young men who exercise recreationally, reporting protein intake above 2.0 grams per kilogram of body weight per day was linked to larger increases in strength, but differences in muscle mass or...
Among young men who train recreationally, consuming more than 2.0 grams of protein per kilogram of body weight per day is linked to slightly larger strength gains in the deadlift compared to the...
In young men who lift weights recreationally, eating more than 2.0 grams of protein per kilogram of body weight per day led to slightly greater increases in strength over 8 weeks compared to eating...
For young men who exercise regularly, eating more than 2.0 grams of protein per kilogram of body weight per day does not lead to significantly more muscle gain than eating less than that amount over...
Young men who lift weights for muscle growth and eat more than 2.0 grams of protein per kilogram of body weight each day tend to get stronger on average than those who eat less than that amount,...
Taking EPA in either structured triglyceride or mixed form raises the ratio of EPA to AA in the blood of healthy young men, and the effect depends on how much EPA is consumed, not how it is...
In healthy young men, taking EPA in a structured triglyceride form may result in a slightly higher level of EPA in the blood compared to a simple mixture of the same components, but the difference...
In healthy young men, higher levels of EPA in the blood or a higher EPA-to-AA ratio do not show a measurable link to better muscular endurance or less muscle fatigue during resistance training.
Taking EPA and DHA supplements in structured triglyceride or mixed forms for eight weeks does not make healthy young men stronger or less fatigued during weight training, even though their blood...
When healthy young men take a specific form of omega-3 fatty acids bound to medium-chain triglycerides for eight weeks, their blood shows a higher ratio of EPA to arachidonic acid than when they take...
Taking 0.35 grams of creatine per kilogram of body weight during sleep deprivation improves cognitive performance, with the strongest effects occurring about 4 hours after taking it and lasting up to...
Taking a specific dose of creatine while sleep-deprived is linked to a measurable drop in ATP-β levels in the brain, along with faster thinking and less tiredness.
After 21 hours without sleep, healthy young adults show a small decrease in brain energy reserves and a slight drop in brain pH, suggesting increased energy use and acid buildup; taking creatine...
After 21 hours without sleep, taking 0.35 grams of creatine per kilogram of body weight increases the ratio of creatine to N-acetyl-aspartate in a specific region of the brain by up to 6.1%,...