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Douglas Labs

L-Lysine 500 Mg.
by Douglas Labs
100 Capsules

An Essential Amino Acid For Collagen Cross-linking*

Our Price: $8.90

L-Lysine, provided by Douglas Laboratories, supplies 500 mg of the amino acid in each capsule.

FUNCTIONS
Amino acids have many functions in the body. They are the building blocks for all body proteins – structural proteins that build muscle, connective tissues, bones and other structures, and functional proteins in the form of thousands of metabolically active enzymes. Amino acids provide the body with the nitrogen that is essential for growth and maintenance of all tissues and structures. Proteins and amino acids also serve as a source of energy, providing about 4 calories per gram. Aside from these general functions, individual amino acids also have specific functions in many aspects of human physiology and biochemistry.*

Lysine is required for collagen cross-linking. Collagen cross-linking is important for resiliency and elasticity of the collagen and elastin present in all connective tissues and blood vessel walls. During formation of new collagen, fibroblasts secrete immature collagen strands and a vitamin C and copper-requiring enzyme, lysyl oxidase. Lysyl oxidase oxidizes the free amino group of the immature collagen’s lysyl side chains. Once oxidized, these lysyl side chains spontaneously engage in various reactions between collagen strands to bring about cross-linking. As a result, a complex network of collagen strands is formed, providing elasticity and resiliency. Another important role of lysine is its precursor function for L-carnitine. L-carnitine is necessary for fatty acid metabolism and energy production in cardiac and skeletal muscle. It is involved in fatty acid oxidation as part of the carnitine shuttle. L-carnitine shuttles fatty acids from the cytosol (the cell fluid) into the mitochondria (the cell’s powerhouses) for oxidation and energy production.*

Dietary lysine is present in the form of proteins, mainly from dairy and animal origin. Vegetarian diets tend to provide little lysine, because vegetable proteins, including legumes, are often low in lysine.*

NOTE: Special Order Product Product - Special Shipping Required
This is a Special Order Product. We stock this in low quantities, due to low-to-moderate sales volume. If the product is on hand, we will ship immediately. If we are out of stock at the time of your order, we will order directly from the manufacturer, on your behalf. This could add an additional 2 to 5 business days to your delivery time.

Supplement Facts Serving Size: One (1) Capsule Servings Per Container: 100

	Amount Per Serving	Daily Value
L-Lysine	500 mg	**

** Daily Value Not Established. Percent Daily Values are based on a 2,000 calorie diet.

Other Ingredients

Cellulose, Gelatin Capsule, Stearates (Vegetable Source)

Suggested Use

As a dietary supplement, one (1) capsule daily, or more as directed by your healthcare professional.

Warnings

Keep out of the reach of children. ... Store in a cool, dry place. ... Do not use if outer seal is missing.

Allergen Info

This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.

Applicable Functions

Cell Formation, Cell Vitality, Cellular Oxidation, Cellular Recharge, Cold Sore Nutrition, Endurance, Free Radicals, Metabolism, Protein Energy Malnutrition, Protein metabolism

Related Structure Groups

Cell, Cellular Function, Collagen, Muscles, Skin, Tissue

REFERENCES

Caballero B, Finer N, Wurtman RJ. Plasma amino acids and insulin levels in obesity: response to carbohydrate intake and tryptophan supplements. Metabolism 1988;37:672-676.

Davis JM, Bailey SP, Woods JA, Galiano FJ, Hamilton MT, Bartoli WP. Effects of carbohydrate feedings on plasma free tryptophan and branched-chain amino acids during prolonged cycling. Eur J Appl Physiol 1992;65:513-519.

Harris RA, Popov KM, Zhao Y, Shimomura Y. Regulation of branched-chain amino acid catabolism. J Nutr 1994;124 Suppl.1499S-1502S.

King PA. Effects of insulin and exercise on amino acid transport in rat skeletal muscle. Am J Physiol Cell Physiol 1994;266:C524-C530.

Links to Additional Information

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