Vegetarian food is a dietary option that favors the consumption of foods of plant origin and the reduction or total elimination of foods of animal origin.
In this way we can find different types of vegetarian diets:
Egg-vegetarian diet
It is a diet that eliminates meat and fish and their derivatives and includes, in addition to foods of plant origin, eggs and dairy.
Ovovegetarian Diet
Eliminate meats, fish and dairy products. The only food of animal origin in the ovovegetarian diet is eggs.
Vegan diet
In the vegan diet it consists only of foods of plant origin.

According to the American Dietetic Association (ADA) in its opinion published in 2009 (1), well-planned vegetarian diets are appropriate for all stages of the life cycle, including pregnancy, lactation, infancy, childhood and adolescence, as well as for athletes.
For this reason it is important to understand this dietary option and to know it. People who follow a vegetarian diet should pay special attention to diet planning and establish the necessary dietary modifications to meet their needs. Nutritional advice from a vegetarian nutritionist is advisable for a varied and healthy diet. The diet must evaluate the contribution of specific nutrients such as calcium, iron, vitamin B12, vitamin D and w-3 fatty acids.
If the diet does not include dairy, it will be necessary to pay attention to calcium and vitamin D, and organize it including other vegetarian foods (of vegetable origin) that provide appreciable amounts of calcium and guarantee daily sun exposure.
In some situations, supplementation will be recommended to provide specific nutrients, such as vitamin B12 supplementation if you follow a vegan diet.