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The combination produced greater improvements in several fertility-related measures than either ingredient on its own, suggesting the two compounds may work particularly well together.23 Doctor's Best provides 50mcg of selenium slightly below the adult RDA of 55mcg and well below the tolerable upper intake level of 400mcg.46 While it's lower than the 200mcg used in the fertility study, it still provides meaningful nutritional support without pushing intake toward levels where selenium toxicity becomes a concern
Consistent administration of B12 shots can help maintain optimal vitamin B12 levels in your body
Both Type I collagen (structural support) and Type III collagen (flexibility and early-stage repair) went up
Normal levels: A result within the reference range typically indicates adequate vitamin B12 levels, which is essential for maintaining good health, including proper nerve function and red blood cell production
Garvey WT, Mechanick JI, Brett EM, et al
