A vegetarian diet cuts out meat but all other nutrient-rich animal products are still eaten. Yoghurt, milk, and eggs are nutrient-rich alternatives to meat and easily accessible and are natural replacements to meat. Meat-free diets do require some adjustment from conventional diets, but it is relatively easy to get all the necessary vitamins, proteins, and nutrients from meatless foods. Even vegan diets offer many nutritional alternatives for supplement free balanced diets, such as legumes, beans, fruit, and leafy greens to meet their protein and vitamin needs naturally. Swapping out meat for other vegetables and fruits can provide a balanced diet without the need for supplements if only people do the research and planning.
Getting enough nutrients from a meat-free diet requires a reevaluation of diets in general, as humans have developed an over-reliance on meat. Meat may be a convenient 'all in one' option, the environmental and health costs associated are not worth the convenience.