The trickiest vitamin for plant-eaters

3 sustainable sources of B12

If you’re eating a balanced diet—including a plant-based one—you’re probably getting most of the nutrients your body needs, like iron and protein. Vitamin B12 is the pesky exception, because while it’s abundant in animal products, it’s entirely absent from most plants. Meat-eaters scarf about 7 micrograms a day—plenty more than the recommended 2.4—while…