For those living off of a truly plant-based diet (I'm talking to you, vegans), chances are, you're not getting enough calcium. Typically found in dairy products, this nutrient is essential for bone health. A calcium deficiency can lead to osteopenia, which can turn into osteoporosis, making your bones more susceptible to fractures and breaks. While certain vegetables do serve as a source of calcium — for example, Chinese cabbage, kale, and broccoli — you're probably not eating enough of those to meet you suggested daily intake. There are plenty of supplements out there that can assist you on getting your daily dose.

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And finally, since every cell in the human body contains protein, it is absolutely vital that you ingest enough of this nutrient daily. The U.S. National Library of Medicine states that protein gives your body the fuel it needs to repair cells and to make new ones. While meat is an obvious go-to source for protein, there are plenty of plant-based alternatives. Popular choices include soy, legumes, beans, and grains such as quinoa. You can also always go the supplement route (there are tons of options suitable for vegetarians and vegans).

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