Although you would assume that both a vegan and a vegetarian meant about the same thing, there are a lot of differences in how they approach life and what is allowed in their diet. Another important definition would be “plant-based “ diet.
Pretty much, the term vegan determines what a person does NOT eat, which is any food that comes in any way from a living creature. They do not even eat honey that comes from bees.
However, that does not mean necessarily that a vegan eats a healthy diet, just that they do not eat meats or other animal products. Theoretically, a vegan could have cupcakes and coffee for breakfast, french fries and soda for lunch, and pasta with sauce for dinner, and it would be considered vegan, even though there is not a single vegetable in that day’s food, and it is not a healthy meal choice.
However, a plant-based diet means that you are eating fresh Whole Foods that come from plants, and not canned and processed foods or unhealthy things like hydrogenated shortening and drinking soda. A plant-based diet means you are enjoying healthy foods and avoiding unhealthy ones, not just eliminating meats from your diet.
There is a great blog article on the main website that explains how to use plant-based foods on our OMAD diet if we want to become vegan or vegetarian.
https://omaddiet.com/plant-based-omad-diet/