However, the Academy of Nutrition and Dietetics considers plant and algae sources "unreliable", stating that vegans should turn to fortified foods and supplements instead
[1] Although water-soluble vitamins are generally excreted through urine when consumed in excess, vitamin B12 is unique in that significant amounts are stored in the liver
What Are B12 Injections and Who Needs Them
The most common side effects include: Gastrointestinal Issues: Nausea, vomiting, diarrhea, and constipation are common, especially when starting the medication
According to the NIH Office of Dietary Supplements, most Americans consume less than the recommended adequate intake of choline 550 mg per day for adult men and 425 mg per day for adult women
There are two common ways to administer vitamin injections: intramuscular and intravenous