The Plant Protein That Just Matched Milk for Muscle Synthesis
Plant protein is supposed to lose to milk when it comes to building muscle, but a new trial in older adults says corn protein didn't get the memo. In a randomized study of 48 healthy adults around age 68, 20 g of corn protein, a pea-corn blend, and milk protein all boosted muscle protein synthesis well above placebo, with no differences between protein groups. Resistance exercise amplified the response in every group. Here is the dose, the numbers, who it may suit, and the caveats you need before swapping your shake.
Leucine vs Protein on Fasting Diets: Older Men's Surprise Result
Leucine is often called the muscle "master switch," so you'd expect it to protect older lifters on fasting diets. A 28-day randomized trial of 61 older men on alternate-day fasting tested leucine and protein supplements against a control. Strength, function, blood pressure and cholesterol markers improved in all groups, and the supplements added no measurable edge on most outcomes. Here are the doses tested, who might still benefit, who can skip it, and where the study falls short.