It's a scientifically determined timeframe that balances utility with safety
Cyanocobalamin is a synthetic form of vitamin B12 thats not found in nature ( Its used more frequently in supplements, as its considered more stable and cost effective than other forms of vitamin B12
Diarrhea and abdominal pain also appeared frequently
A recent systematic review and meta-analysis of 21 randomized, placebo-controlled trials examining the effect of B-vitamin supplementation found the supplementation decreased homocysteine concentrations and improved measures global cognitive function but had no effect on individual measures of executive function, information processing speed, or episodic memory (89)
Firmer, more supported skin over 812 weeks with consistent use
It could indicate internal bleeding, ulcers, or other critical gastrointestinal issues that need prompt diagnosis and treatment