Any sources? Most of the professionals seem to think otherwise.
I'm not arguing that it's healthier or you can live longer, just that most people can be healthy and live.
Do you have a source that most professionals believe that most people can't live and be healthy on a vegetarian diet?
[Dietitians of Canada](https://www.dietitians.ca/Downloads/Factsheets/Guidlines-for... * A healthy vegan diet can meet all your nutrient needs at any stage of life including when you are pregnant, breastfeeding or for older adults.
[The British National Health Service](http://www.nhs.uk/Livewell/Vegetarianhealth/Pages/Vegandiets... * With good planning and an understanding of what makes up a healthy, balanced vegan diet, you can get all the nutrients your body needs.
[The British Nutrition Foundation](http://www.nutrition.org.uk/publications/briefingpapers/vege... * A well-planned, balanced vegetarian or vegan diet can be nutritionally adequate ... Studies of UK vegetarian and vegan children have revealed that their growth and development are within the normal range.
[The Dietitians Association of Australia](https://daa.asn.au/smart-eating-for-you/smart-eating-fast-fa... * Vegan diets are a type of vegetarian diet, where only plant-based foods are eaten. With good planning, those following a vegan diet can cover all their nutrient bases, but there are some extra things to consider.
[The United States Department of Agriculture](http://www.choosemyplate.gov/tips-vegetarians)** * Vegetarian diets (see context) can meet all the recommendations for nutrients. The key is to consume a variety of foods and the right amount of foods to meet your calorie needs. Follow the food group recommendations for your age, sex, and activity level to get the right amount of food and the variety of foods needed for nutrient adequacy. Nutrients that vegetarians may need to focus on include protein, iron, calcium, zinc, and vitamin B12.
[The National Health and Medical Research Council](https://www.nhmrc.gov.au/_files_nhmrc/file/publications/n55_... * Appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthy and nutritionally adequate. Well-planned vegetarian diets are appropriate for individuals during all stages of the lifecycle. Those following a strict vegetarian or vegan diet can meet nutrient requirements as long as energy needs are met and an appropriate variety of plant foods are eaten throughout the day
[The Mayo Clinic](http://www.mayoclinic.org/healthy-living/nutrition-and-healt... * A well-planned vegetarian diet (see context) can meet the needs of people of all ages, including children, teenagers, and pregnant or breast-feeding women. The key is to be aware of your nutritional needs so that you plan a diet that meets them.
[The Heart and Stroke Foundation of Canada](https://www.heartandstroke.ca/get-healthy/healthy-eating/spe... * Vegetarian diets (see context) can provide all the nutrients you need at any age, as well as some additional health benefits.
[Harvard Medical School](http://www.health.harvard.edu/staying-healthy/becoming-a-veg... * Traditionally, research into vegetarianism focused mainly on potential nutritional deficiencies, but in recent years, the pendulum has swung the other way, and studies are confirming the health benefits of meat-free eating. Nowadays, plant-based eating is recognized as not only nutritionally sufficient but also as a way to reduce the risk for many chronic illnesses.
[British Dietetic Association](https://www.bda.uk.com/foodfacts/vegetarianfoodfacts.pdf)** * Well planned vegetarian diets (see context) can be nutritious and healthy. They are associated with lower risks of heart disease, high blood pressure, Type 2 diabetes, obesity, certain cancers and lower cholesterol levels. This could be because such diets are lower in saturated fat, contain fewer calories and more fiber and phytonutrients/phytochemicals (these can have protective properties) than non-vegetarian diets. (...) Well-planned vegetarian diets are appropriate for all stages of life and have many benefits.
> I'm glad it works for you right now while providing a sense of moral superiority, but not everyone is the same.
Come on.