[DOI] [PubMed] [Google Scholar] 60.Deboer MD, Marks DL
An inability to digest B12 as a result of low levels of intrinsic factor for either genetic reasons or a result of physical damage to the stomach or small intestine can also cause deficiency
For long-term knee osteoarthritis, oral collagen peptides (3-5g daily) have stronger randomized controlled trial support across multiple studies totaling 507 patients
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However, in order to be used in any experiment, they must first be dissolved in a liquid , this process is called reconstitution
5 A recent cohort study of NAD+ and a proprietary combination of B vitamins, amino acids, and DL-phenylalanine (an enkephalinase inhibitor) IV for substance abuse disorder found statistically significant improvement in cravings, anxiety, and depression scores for patients on IV NAD+.5 Another study on patients with alcohol or opiate addiction found doses of 500-1500mg per day (in combination with some vitamins, amino acids, and n-acetylcysteine) for 10 days to reduce cravings and number of relapses when patients were surveyed 12-20 months post treatment
