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I don't know for sure the cause of my deficiency

98 Melatonin is thought to reduce tinnitus by protecting hair cells (sensory cells in the ear responsible for hearing) from oxidative damage, promoting normal blood flow to inner ear structures, relaxing ear muscles, attenuating depression and anxiety, inhibiting the stress response, and supporting normal sleep patterns

There does not appear to be enough evidence that vitamin B12 supplementation can reduce joint pain

NAD+ (nicotinamide adenine dinucleotide) is a vital coenzyme found in every cell, driving energy metabolism, DNA repair, and mitochondrial performance

Reference: Goldstein AL et al

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