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Independent editorial coverage of sports nutrition, athlete health and the science behind performance.

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Sports Nutrition: Active Ingredients

Caffeine Myths: What the Research Actually Says

Caffeine is the most widely used performance aid on the planet, and it is also one of the most misunderstood. Coffee-shop wisdom, gym…

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Sports Nutrition: Active Ingredients

Betaine Forms and Which One to Choose

Betaine, also called trimethylglycine, has become a common ingredient in pre-workout and strength formulas. It comes in a few different…

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Sports Nutrition: Active Ingredients

Side Effects of Turkesterone: What We Know

Turkesterone became a social-media sensation as a supposed "natural anabolic" that builds muscle without the downsides of steroids. Our…

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Antiestrogens, SERMs, Aromatase Inhibitors

Dutasteride: Mechanism of Action

Dutasteride is a prescription medication best known for treating an enlarged prostate and, off-label, male-pattern hair loss. Its effects…

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Sports Nutrition: Active Ingredients

Magnesium: What It Is and How It Works

Magnesium is one of the most important minerals in the human body, involved in hundreds of biochemical reactions, yet many Americans fall…

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Sports Nutrition: New Compounds

What to Combine Resveratrol With

Resveratrol is a plant compound famous for its link to red wine and longevity research, but on its own it is poorly absorbed. Much of the…

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Sports Nutrition: New Compounds

MCT Oil After 40

Medium-chain triglyceride (MCT) oil has moved from a niche keto product to a mainstream supplement, and it is often marketed specifically…

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Hormones, Fat Burners, Metabolic Drugs

Tirzepatide and WADA Status

Tirzepatide, sold as Mounjaro and Zepbound, is a prescription medication for type 2 diabetes and obesity that has drawn attention in…

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Editor's picks

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