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All comparisons presented here are based on separate studies conducted under different conditions, using different models, endpoints, and methodologies

A simple routine that you enjoy using every day is often easier to maintain over the long term

From undisclosedComments about Vitamin B-12 1000mcgMy vet has me administering 1x per week for 6 weeks then once a month

On/off cycling here is driven by caution, not by tolerance data: because there is no long-term human safety record, building in scheduled off periods is the conservative research default

Because B12 occurs naturally in animal products, plant-based diets carry a higher risk of low levels