Vegans do not eat animals or anything that comes from animals. This includes, but is not limited to, meat, fish, insects, eggs, milk, cheese, honey, certain drinks that contain animal produce.
Vegan diets are healthy and nutritionally adequate for individuals during all stages of life including pregnancy, breastfeeding, infancy, childhood and adolescence. They are also adequate for elite athletes.
All diets, vegan or not, can lead us to health problems if they are poorly planned or unbalanced. However, that has nothing to do with veganism, but with our own eating habits.
Well-planned and balanced vegan diets may provide health benefits in the prevention of treatment of certain diseases, since they are associated with lower risks of heart disease, high blood pressure, Type 2 diabetes, obesity, certain cancers and lower cholesterol levels.