Health Claims

If young, healthy guys drink a protein shake with some carbs before bed while lifting weights for 12 weeks, they’ll probably gain more muscle and get stronger than if they just drank a fake shake...

Older guys who lift weights and take a protein shake after workouts and before bed get the same muscle-building effect as those who take a fake shake with the same calories — so the protein might not...

If older guys who are already active do full-body strength training three times a week for three months, they’ll get stronger legs and bigger leg muscles—even without adding extra protein to their...

For older guys who lift weights, having a protein shake with 3 grams of leucine right after workouts and before bed doesn’t help build more muscle or strength than just having a placebo drink with...

Older guys (60–75) who already eat enough protein don’t get stronger or build more muscle from extra protein shakes, even if they drink them after working out or before bed—just lifting weights is...

Older guys between 60 and 75 who aren't very active can get a lot stronger in just 12 weeks by lifting weights twice a week—even if they don’t take extra protein right after workouts or before bed,...

For older guys in their 60s and 70s who already eat enough protein, taking 40 grams of protein right after working out or just before bed doesn’t help build bigger leg muscles any more than just...

Mixing plant and animal proteins—like soy with milk proteins—can work just as well for building muscle as using only animal proteins, especially after working out.

Eating more plant protein—like 60 grams of wheat protein in one meal—might help older adults build muscle just as well as smaller amounts of animal protein, like whey, even though plant proteins...

Plant proteins might not help older people build or keep muscle as well as animal proteins because they're harder to digest and don't have as much of the important building blocks muscles need.

If young adults who aren't used to working out eat a bit more protein—especially from whey or soy—and lift weights 3 times a week for 3 months, they’ll likely gain more muscle and get stronger, even...

For young people new to lifting weights, taking soy protein or whey protein daily seems to have the same effect on thigh muscle growth.

If young adults who aren't used to working out do strength training 3 times a week for 12 weeks, they’ll gain about 1.5 kg of muscle and get stronger legs — and it doesn’t matter if their protein...

If you're a young adult just starting strength training, drinking a shake with either whey or soy protein—both with the same amount of a key muscle-building amino acid (leucine)—will help you gain...

Adding missing amino acids like lysine or methionine to plant proteins might make them better for building muscle, but we don’t have solid proof from human studies yet.

Mixing different plant proteins, like peas and rice, can give you all the amino acids your muscles need, just like animal protein.

Eating larger amounts of plant protein, like wheat, can build muscle just as effectively as eating animal proteins like whey.

Some plant proteins don't help build muscle as well as animal proteins because they often don't have enough of certain important building-block nutrients, especially lysine and methionine, which are...

Plant proteins like soy and wheat don’t help build muscle as much right after eating compared to animal proteins like whey or milk, especially in older people when they're not exercising.

If guys who already lift weights drink a 20g protein shake after working out for 9 weeks, they’ll gain more muscle and get stronger—even if the protein is a mix of fast- and slow-digesting types.

If you lift weights and drink a protein shake after your workout, one made only with fast-digesting whey might give your body a quicker boost of key muscle-building amino acids than a mix with mostly...

If you're a guy who lifts weights, drinking a protein shake after your workout with different mixes of fast- and slow-digesting milk proteins — like whey and casein — gives you about the same muscle...

After a workout, drinking protein from cricket, pea, or whey doesn't seem to turn on muscle-building signals more than just taking the protein alone — at least not in the short term.

In young, healthy guys, eating cricket, pea, or whey protein (based on body type) works the same for turning on a key muscle-building signal in the body — whether they’ve just worked out or not.