The average man’s body has a higher percentage of muscle than the average woman’s -- about 36% more -- but that doesn’t mean that men can take their advantage for granted. Men reach their peak testosterone level in their teens and early 20s, meaning that as years pass, testosterone levels will drop, and it will be harder to build and retain muscle strength and mass.
So what can you do to help stave off the decline and stay fit and muscular as you get older? Muscle mass largely...
Some research, mainly from the 1970s and 1980s, offers some support for using it for depression. Several studies also showed that L-phenylalanine plus ultraviolet A light may be helpful for people with vitiligo.
There is less evidence to support its use for other conditions.
Optimal doses of phenylalanine have not been set for any condition. Quality and active ingredients in supplements may vary widely from maker to maker. This makes it difficult to set a standard dose. However, commonly used dosages, depending on the condition, range from 150 mg to 5,000 mg daily.
Can you get phenylalanine naturally from foods?
Phenylalanine is found in many foods, including:
Products containing aspartame
What are the risks of taking phenylalanine?
Phenylalanine can trigger allergic reactions, with symptoms such as: