L-Lysine is a necessary building block for all protein. It is needed for proper growth in children and to maintain muscle in adults. L-Lysine is noted for fighting cold sores caused by the herpes virus. Because of its strengthening ability, it acts as an immune booster. Your dog or cat can benefit from l-lysine, too. At the first sign of a runny nose or matted eyes, I give some l-lysine. This fixes the problem within a day or two. Food sources include cheese, eggs, fish, potatoes and red meat to name a few.
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