Supplements and injections are effective ways to treat vitamin B12 deficiencies. These are the benefits and potential risks ...

Vitamin B12 plays a huge role in supporting your health – from muscles, mood and energy to hair growth and well-functioning cells, it’s a vital component – but many people don’t get enough ...

Most people get enough vitamin B12 through the foods they eat ... B12 levels before adding a supplement or shot. One of the best ways to maximize absorption is through proper gut health.

"So if you eat algae, then you get the B12 that way," Alison Smith, a plant biochemist at the University of Cambridge, told Insider. Smith's research focuses on how to reap the B12 benefits of algae.