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However, in a pre- and postnatal development study, amphetamine (d- to l- ratio of 3:1) administered orally to pregnant rats during gestation and lactation caused a decrease in pup survival and a decrease in pup body weight that correlated with a delay in developmental landmarks at clinically relevant doses of amphetamine

One study found that 2 grams of vitamin C supported healthy histamine levels by reducing histamine approximately 38%. 26 Copper: DAO is a copper-containing enzyme

Other reported preclinical effects Beyond connective tissue and the gastrointestinal tract, the BPC-157 literature describes effects in additional rodent injury models

Tyagi et al., 2025), with probiotic and prebiotic supplementation showing anxiolytic effects in randomized controlled trials via MGBA modulation (Johnstone et al., 2021