The Supplement Database is an ever-growing resource providing objective information to allow you to decide on which product best fits your needs.
The conclusion on these three ingredients falls in line with what we've previously found; there is very little evidence backing up their claim of increasing testosterone levels for the vast majority of people.
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...
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...
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.
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...
Theoretically, beta-alanine should improve performance in several activities, especially high intensity or longer duration ones. Let's take a look at what the research says!
Beta-alanine is a very popular non-essential amino acid found in many pre-workout supplements. It's associated with decreased fatigue and potentially, increased performance in several activities. Let's take a look at some research on this supplement's safety.
Beta-alanine is an amino acid produced in the liver. Beta-alanine has seen a surge in popularity over the last few years. Of all the products contained in the Supplement Database, 36% of them contain beta-alanine, making it the second most popular ingredient behind caffeine.
In our series on soy protein, we covered topics including its effects on testosterone, health benefits, and body composition. Here we'll go over our findings and make a final recommendation on whether or not soy protein is worth taking.