There are compounds called reactive oxygen species such as free radicals, peroxides, lipid peroxides, and heavy metals
334 A phase I study is ongoing to evaluate AG-270 in advanced solid tumors and lymphomas (NCT03435250)
10.1128/JB.163.1.1-7.1985 J
Foods that help increase absorption: Vitamin C-rich fruits such as oranges, strawberries, and kiwi Lean meats, poultry, and fish that contain heme iron Legumes, lentils, tofu, and leafy greens for plant-based iron sources Foods that reduce absorption: Dairy products including milk, yogurt, and cheese Coffee, black tea, and cocoa due to tannins and caffeine Whole grains and high-fiber foods immediately around supplement time Spacing your supplement away from these blocking foods ensures that your body receives the maximum possible benefit
If you suspect you've experienced side effects from vitamin B12 supplementation, you can report these through the MHRA Yellow Card scheme