preworkout

Which preworkout supplement ingredients work best?

There is a good reason caffeine and beta-alanine are the two most popular ingredients found in preworkout supplements. There is plenty of research on both ingredients, and the research is overwhelmingly positive on their ability to improve workout performance. The same is not true for tyrosine. Verdict: caffeine and beta-alanine...

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whey protein muscle

Does whey protein build muscle?

Whey protein is one of the most favorably studied supplements on the market. Unlike other supplement ingredients, it consistently shows benefits for a wide variety of claims, including its ability to build muscle when combined with resistance training. The studies here include subjects of both genders ranging from, young men...

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testosterone

Are there any supplements that increase testosterone?

Young, healthy males on a balanced diet, will probably not see any meaningful benefits in using testosterone boosters containing zinc, tongkat ali, or fenugreek. Older males or males who have low testosterone levels may see some improvement when using these products.

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similarity index

Introducing: Supplement Product Similarity Index

Supplement Product Similarity Index

Supplement products, such as pre-workouts, sleep aids, or immunity boosters, are simply a collection of ingredients such as creatine, vitamins, amino acids, and minerals. These ingredients make a product what it is. What's the difference between two products made up of the same ingredients when one costs...

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