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Human clinical data remains preliminary
It can also develop from poor B12 absorption, because some people are not able to absorb it well
If you're a strict vegetarian or vegan, you're at higher risk of B12 deficiency since plant-based foods don't naturally have B12
Adequate protein intake (1 g per kg body weight or higher) reduces both lean-mass loss and shedding risk
COAs are lot-traceable and available on the Lab Tests page
That timing puts the worst of the post-injection GI discomfort (when it happens) on a weekend day rather than a weekday
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