Glutamine is an amino acid that is found in your muscles. Research has shown that after an intense workout, the glutamine levels in your body can drop by as much as 50%. Glutamine is also essential to keep your immune system functioning properly. As we all know, a poor immune system can leave you feeling weak and sick. According to a study by Trinity and All Saints University College, a routine supplementation of glutamine post-workout can help lessen the change of injury, improve immune function and help you recover faster after over training. 2 grams of L-glutamine daily is all that you need.
Ephedra was the king of metabolism boosters when it was legal for sale over the counter, which is why women flocked to buy popular products like MetaboLife and Xenadrine RFA-1. Since then, it has been much more difficult to find effective ingredients that could effective boost metabolic rate for an increase in calorie burn. Thanks to advances in over the counter weight loss supplements, products that contain the latest cutting edge fat burning ingredients such as PEA (2-Phenylethylamine), Hordenine, Synephrine and Yohimbine HCL can give women a legal and safe alternative to Ephedra.
Several studies concluded that diets low in fat (under 15% of total calories) significantly decreased testosterone levels while diets higher in fat (above 30% of total calories) increased serum testosterone levels. Rather than continuing with this discussion I will provide a link to an article which covers the subject quite nicely. To simplify everything that I have said, it seems that one should not lower fat below 15% of daily calories unless they would like to face extreme testosterone deficiencies. Likewise, one should not increase fat to say 40% in order to increase testosterone. Although fat increases testosterone to a degree, it is important to remember that testosterone is only a small piece of the larger puzzle. There are many other hormones and factors involved in building muscle other than just testosterone. By increasing fat to extremely high levels, there will be less “space” for carbohydrates and protein, both of which are very important for aforementioned reasons.