Vegetarian diet: How to get the best nutrition
A well-planned vegetarian diet is a healthy way to meet your nutritional needs. Find out what you need to know about a plant-based diet.By Mayo Clinic Staff
Vegetarian diets are popular. Reasons for following a vegetarian diet are varied but include health benefits, such as reducing your risk of heart disease, diabetes and some cancers.
Yet some vegetarians rely too heavily on processed foods, which can be high in calories, sugar, fat and sodium. And they may not eat enough fruits, vegetables, whole grains and calcium-rich foods, thus missing out on the nutrients they provide.
However, with a little planning a vegetarian diet 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.
Types of vegetarian diets
When people think about a vegetarian diet, they typically think about a diet that doesn't include meat, poultry or fish. But vegetarian diets vary in what foods they include and exclude:
- Lacto-vegetarian diets exclude meat, fish, poultry and eggs, as well as foods that contain them. Dairy products, such as milk, cheese, yogurt and butter, are included.
- Ovo-vegetarian diets exclude meat, poultry, seafood and dairy products, but allow eggs.
- Lacto-ovo vegetarian diets exclude meat, fish and poultry, but allow dairy products and eggs.
- Pescatarian diets exclude meat and poultry, dairy, and eggs, but allow fish.
- Pollotarian diets exclude meat, dairy and fish, but allow poultry.
- Vegan diets exclude meat, poultry, fish, eggs and dairy products — and foods that contain these products.
Some people follow a semivegetarian diet — also called a flexitarian diet — which is primarily a plant-based diet but includes meat, dairy, eggs, poultry and fish on occasion or in small quantities.
March 14, 2016
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- Messina V, et al. A new food guide for North American vegetarians. Journal of the American Dietetic Association. 2003;103:748.
- Vegetarian diets. American Heart Association. http://www.heart.org/HEARTORG/GettingHealthy/NutritionCenter/Vegetarian-Diets_UCM_306032_Article.jsp. Accessed April 16, 2015.
- Duyff RL. Food choices: The consumer marketplace. In: American Dietetic Association Complete Food and Nutrition Guide. 4th ed. Hoboken, N.J.: John Wiley & Sons; 2012.
- Position of the American Dietetic Association: Vegetarian diets. Journal of the American Dietetic Association. 2009;109:1266.
- Marsh K, et al. Meeting nutritional needs on a vegetarian diet. Australian Family Physician. 2009;38:600.
- 2015-2020 Dietary Guidelines for Americans U.S. Department of Health and Human Services and U.S. Department of Agriculture. http://health.gov/dietaryguidelines/2015/guidelines/. Accessed Jan. 7, 2016.
- Craig WJ. Nutrition concerns and health effects of vegetarian diets. Nutrition in Clinical Practice. 2010;25:613.
- Craig WJ. Health effects of vegan diets. American Journal of Clinical Nutrition. 2009;89:1627S.
- Vegetarian and vegan diet pyramid. Oldways Preservation Trust. http://oldwayspt.org/resources/heritage-pyramids/vegetarian-diet-pyramid/overview. Accessed April 16, 2015.
- The basics of plant food nutrition. Oldways Preservation Trust. http://oldwayspt.org/resources/heritage-pyramids/vegetarian-diet-pyramid/basics-plant-food-nutrition. Accessed April 16, 2015.
- Vegetarian diet and health. Oldways Preservation Trust. http://oldwayspt.org/resources/heritage-pyramids/vegetarian-diet-pyramid/vegetarian-diet-health. Accessed April 16, 2015.
- Colditz GA. Healthy diet in adults. http://www.uptodate.com/home. Accessed April 16, 2015.
- Healthy eating for vegetarians. U.S. Department of Agriculture. http://www.nutrition.gov/smart-nutrition-101/healthy-eating/eating-vegetarian. Accessed April 16, 2015.
- Demory-Luce D, et al. Vegetarian diets for children. http://www.uptodate.com/home. Accessed April 16, 2015.
- Le LT, et al. Beyond meatless, the health effects of vegan diets: Findings from the Adventist Cohorts. Nutrients. 2014;6:2131.
- Nelson JK (expert opinion). Mayo Clinic, Rochester, Minn. April 20, 2015.