HMB is usually sold as a way to hold onto muscle and build strength, but a new triple-blind trial found something different. In 90 men, a high personalized dose of liquid HMB free acid (90 mg per kg of fat-free mass daily) plus high-intensity functional training raised VO2max and threshold markers more than placebo. The effect was clearest in trained men, and isometric leg strength did not budge. Here is the dose math, how it compares with the standard 3 g, and who might actually benefit.
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