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The kidney toxicity mechanism, specifically the breakdown of D-amino acids by renal enzymes, would likely make extended continuous use problematic

A deficiency can affect the nervous system and cause sensations such as numbness or tingling in the hands, feet, or legs
Research suggests that this is even more important for women who are pregnant or lactating (6)

Packaged in the USA by a family owned and operated company since 1968 During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
