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L-Valine is a proteinogenic (protein building) amino acid.  It is also an essential amino acid, so we must get it from the foods we eat.  It can be found in foods containing protein like meats, dairy products, soy, beans and legumes.

The benefits of L-Valine are that it promotes cognitive function, calms emotions and improves muscle growth and repair.  It also regulates blood sugar and helps stimulate the central nervous system.  You will find this ingredient in products for Muscle Building and Sports Nutrition,  especially used in combination with L-Leucine and L-Isoleucine to promote muscle tissue health during exercise.  Although it is mostly found in these muscle products, it's use in the improvement of insulin sensitivity  may find its way into products for the diabetic community, although further studies need to be made.


L-Phenylalanine is an essential amino acid, which has a role in protein production  and production of other important molecules which send signals throughout the body.  Since it is an essential amino acid, we need to get it from the foods we eat.  The main sources of L-phenylalanine are meat, fish, eggs, cheese and milk.

This molecule exists in two forms: L & D.  The "L" form is found naturally in foods while the "D" form can be synthesized and used for medical applications.  Some of the important molecules phenylalanine helps produce are:  Tyrosine, Epinephrine & Norepinephrine and Dopamine, all of which are important for normal body functioning.  There are other areas that phenylalanine has shown promise.  Research dealing with skin disorders, depression, pain, and alcohol withdrawal  are looking further into possible benefits that phenylalanine may bring to these problem areas.

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