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Author Archives: Nathan

Egg Protein Powder for Your Essential Amino Acids – the Superior Choice?

Egg protein powder has been on the market for years and although not as popular as whey protein, it should be a consideration for those who wish to get a near perfect protein with all the essential amino acids. Even without the egg yolk to supplement the body with cholesterol and fats, the protein of […]

Vegan Sources of Lysine Amino Acid

It is well established that vegetarians and vegans are often deficient in the amino acid lysine, which can lead to diminished health. Lysine typically comes from protein foods like meats (beef, pork, turkey, chicken, etc.), eggs, fish, and even dairy. Making sure you have adequate protein intake is the key to getting enough lysine, but are nuts […]

Does L-tryptophan Affect Women More Than Men?

An interesting study from Europe has found that depletion of the amino acid L-tryptophan affects emotional processing, specifically how we recognize fear. But are women affected more than men? L-tryptophan is an essential amino acid, which means we must obtain it from our diet, or in supplements. L-tryptophan is found in many animal and plant […]

Sulfur-Containing Amino Acids Cysteine and Methionine

The two main sulfur-containing amino acids are cysteine and methionine; however, there are other sulfur-containing amino acids as well. Both cysteine and methionine are nonpolar as well as hydrophobic, with methionine being extremely hydrophobic as far as amino acids go. Methionine is also found inside proteins, and cysteine is often found there too. There are […]

Selenium and Selenocysteine and Health

Selenium is a nonmetal element on the periodic table (between sulfur and tellurium), while Cysteine is a semi-essential amino acid. But when Selenium performs its biological functions, it does so through selenoproteins. Selenoproteins have selenium in them as the form of the 21st amino acid, selenocysteine (also called Sec), which is a cysteine analog. Selenocysteine […]

Amino Acid L-Citrulline in Watermelon Can Help Athletes Recover Faster

Could watermelon juice help you with sore muscles? Could it help improve athletic performance by enabling muscles repair faster?  Scientists Tarazona, Alacid, Carrasco, Martinez and Aguayo studied this topic in Murcia, Spain, and came to this conclusion. The key ingredient that does the job is the amino acid L-Citrulline.  It has been used as a […]

Amino Acid Phenylalanine Helps Us Make Good — And Bad — Decisions

Are you an optimist, or a pessimist? Do you ever make bad decisions? The level of dopamine—created from the amino acid phenylalanine—in your brain could be influencing your ability to make good decisions. A recent interesting study from University College London investigated whether high levels of dopamine makes us unrealistically optimistic. Have you ever purchased […]