kaytee flat bac water bottle small animal 4 oz Animal, Flat-Bac Bottle, Clear, 32 oz. - 100079415 This five Kaytee Cage Holder Flat-Bac Water
Description
The powerful connection between B12 metabolism support and improved energy levels is why this treatment has become a cornerstone in many of our custom health and weight loss programs

Or a dozen other things, but worth checking

"Folic acid, pyridoxine, and cyanocobalamin combination treatment and age-related macular degeneration in women: the Women's Antioxidant and Folic Acid Cardiovascular Study"

Nicotinamide (niacinamide) does not cause flushing and has fewer side effects, with nausea and liver toxicity reported only at very high intakes ~3 g/day)