grape seed extract and glutathione Alpspure Nutra L-Glutathione Tablets with Biotin, Vitamin A.C, E, Alpha Lipoic Acid & (30 Tablets) For Healthy youthful Glowing Skin for Men and Women Pack of-1 Krasaliwa L-Glutathione Vitamin C, ALA

Arch Biochem Biophys 615 , 2234, (2017)

However, no supplement or compound is a substitute for a tailored, comprehensive approach

Herzenberg, L

Inadequate secretion of intrinsic factor, resulting from lesions that destroy the gastric mucosa (which can be caused by ingestion of corrosives, extensive tumors, and conditions associated with gastric atrophy, such as multiple sclerosis, certain endocrine disorders, iron deficiency, and subtotal gastrectomy) Structural lesions leading to vitamin B 12 deficiency, including regional ileitis, ileal reactions, and malignancies Competition for vitamin B 12 by intestinal parasites or bacteria