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More recently, a longitudinal study among 3,849 community-living older adults in Ireland found that low vitamin B 12 serum concentrations ( 258-601 pmol/L) (101)

Its strength is in shifting body composition from the inside: reducing visceral fat, improving lean muscle mass, and restoring metabolic function that has declined with age or hormonal changes

The greater room for improvement in skin showing more advanced aging signs means potential for more dramatic results with appropriate products and patience

When found early, the symptoms are generally able to be treated fairly easily with vitamin B12 replacement, typically by mouth, but sometimes through injections, she said