Arginine is classified as a semi, conditionally essential amino acid. It is nonessential in nature, but becomes essential in times of extreme stress. The body's ability to synthesize this amino acid is lost during these traumatic periods. Adequate dietary intake is therefore necessary to meet the increased physiological need.

Synthesized in the kidney, arginine is a vital amino acid, critical for numerous metabolic processes. Processes such as nitrogen catabolism, the Krebs-Henseleit urea cycle, and detoxification of ammonia are directly dependent upon arginine. It also serves as a precursor to a host of hormones, neurotransmitters, and proteins. Arginine may also be used for biological energy if glycogen is needed by the body.

Supplemental L-arginine is also acknowledged for its antioxidant properties, immunological benefit, and wound repair activity. It shows great promise in the prevention of cardio vascular disorders (e.g. atherosclerosis, angina pectoris), supporting male infertility, and aids in both kidney and liver functioning. Claims that L-arginine supplementation enhances the reduction of body fat and increases both lean muscle mass and exercise performance are, however, unsubstantiated.

Products Containing Arginine
Name Price Rating Serving Price # of Servings Manufacturer Health Condition
Casein Protein $25.99
$0.96 27 Optimum Nutrition
Genuine Brewers Yeast $6.90
$0.22 32 Twinlab
Lean Body Chocolate Peanut Butter $48.95
$2.45 20 Labrada
Lean Body Mass $26.24
$2.92 9 Labrada
M1-BOL $42.89
$0.86 50 Fizogen
Myoplex Deluxe $99.99
$2.78 36 EAS
Pro Blend 55 $31.49
$2.42 13 Wellement
ProV60 $29.81
$1.49 20 Labrada
Superior Amino 2222 $17.99
$0.12 150 Optimum Nutrition
Whey Gourmet $27.95
$0.93 30 PVL
Whey Matrix $26.00
$0.37 71 ISS


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