While anyone can benefit from healthy B12 levels, certain groups are more likely to experience deficiencies and may see greater advantages from supplementation: Vegans and vegetarians: B12 is primarily found in animal products, making supplementation critical for those on plant-based diets
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Figure 2 Apart from the SOD and catalase system, the glutathione system, which is composed of glutathione (GSH), -glutamyl cysteine synthase (GCS), GSH synthetase, glutathione peroxidase, and glutathione reductase (GSR), also plays an important role in mediating cellular redox homeostasis
Animal studies used doses up to 1.1 mg per kilogram of body weight with no adverse effects observed
Some advanced users add injectable GHK-Cu for systemic benefits