There is no optimal diet for everyone. However, vegan diets have shown to reduce the chances of getting a lot of our most common mortal diseases. And I am not talking about small, funded studies here. Seems more than adequate to me...
Here is what the ADA said:
"It is the position of the American Dietetic Association that appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases. Well-planned vegetarian diets are appropriate for individuals during all stages of the life cycle, including pregnancy, lactation, infancy, childhood, and adolescence, and for athletes. A vegetarian diet is defined as one that does not include meat (including fowl) or seafood, or products containing those foods.
This article reviews the current data related to key nutrients for vegetarians including protein, n-3 fatty acids, iron, zinc, iodine, calcium, and vitamins D and B-12. A vegetarian diet can meet current recommendations for all of these nutrients. In some cases, supplements or fortified foods can provide useful amounts of important nutrients. An evidence- based review showed that vegetarian diets can be nutritionally adequate in pregnancy and result in positive maternal and infant health outcomes.
The results of an evidence-based review showed that a vegetarian diet is associated with a lower risk of death from ischemic heart disease. Vegetarians also appear to have lower low-density lipoprotein cholesterol levels, lower blood pressure, and lower rates of hypertension and type 2 diabetes than nonvegetarians. Furthermore, vegetarians tend to have a lower body mass index and lower overall cancer rates. Features of a vegetarian diet that may reduce risk of chronic disease include lower intakes of saturated fat and cholesterol and higher intakes of fruits, vegetables, whole grains, nuts, soy products, fiber, and phytochemicals."
Are you not doing the same? You are telling people to disregard vegan advice. Is that not also forsing your beliefs on others? I know a lot of people who are vegan who are completely fine with me occasionally eating animal products but I have a few friends on a keto diet who always get very pushy about their dietary beliefs.
I get that... Something that worries me a lot as well...But how about all the scary stuff that gets injected into the animals in animal agriculture? And what do you think uses more of our lands? Animal or plant agriculture?