What seems interesting is that this came up around page 3 of the article you suggested. [spoiler] Most adults and children don’t get enough calcium, vitamin D, or potassium according to the 2010 Dietary Guidelines. Potassium-rich foods, including fruits, vegetables, dairy, and [b]meat[/b] are the best ways to fill in potassium gaps. [/spoiler] Also this, [spoiler] Anyone whose diet lacks the 40-plus nutrients needed for good health may benefit from vitamin and mineral supplements. In general, the following groups can be helped, but they should consult their doctor or a registered dietitian when deciding if they need a supplement or choosing one: •Pregnant and lactating women •[b]Vegans and some people on vegetarian diets[/b] •Anyone on a low-calorie diet (intentional and unintentional) •Certain disease states (including people with a history of cancer) •People who suffer from food allergies or intolerances •Picky eaters who limit food groups, or have limited variety within food groups •Anyone with a poor diet •People taking certain medications [/spoiler] This proves that having a vegan diet does not let you acquire all the nutrients your body needs and you would need to rely on supplements for the those not found in your diet. This whereas I also find in the article, [spoiler] Think nutritious food first, and then supplement the gaps. Start by filling your grocery cart with a variety of nourishing, nutrient-rich foods. Use the federal government's My Plate nutrition guide to help make sure your meals and snacks include all the parts of a healthy meal. [/spoiler] Cannot find a link to a direct picture, but if you scroll down to the page I'll cite, you will see a bar-organized list http://www.disabled-world.com/fitness/nutrition/myplate.php