According to the United States National Institutes of Health, vitamin B12 is not generally present in plants and is naturally found in foods of animal origin.[87] Lacto-ovo vegetarians can obtain B12 from dairy products and eggs, and vegans can obtain it from fortified foods (including some soy products and some breakfast cereals) and dietary supplements.[88][89][90][91][92] Vitamin B12 can also be obtained from fortified yeast extract products.[93]
Vegetarian diets typically contain similar levels of iron to non-vegetarian diets, but this has lower bioavailability than iron from meat sources, and its absorption can sometimes be inhibited by other dietary constituents.[81] According to the Vegetarian Resource Group, consuming food that contains vitamin C, such as citrus fruit or juices, tomatoes, or broccoli, is a good way to increase the amount of iron absorbed at a meal.[82] Vegetarian foods rich in iron include black beans, cashews, hempseed, kidney beans, broccoli, lentils, oatmeal, raisins, spinach, cabbage, lettuce, black-eyed peas, soybeans, many breakfast cereals, sunflower seeds, chickpeas, tomato juice, tempeh, molasses, thyme, and whole-wheat bread.[83] The related vegan diets can often be higher in iron than vegetarian diets, because dairy products are low in iron.[68] Iron stores often tend to be lower in vegetarians than non-vegetarians, and a few small studies report very high rates of iron deficiency (up to 40%,[84] and 58%[85] of the respective vegetarian or vegan groups). However, the American Dietetic Association states that iron deficiency is no more common in vegetarians than non-vegetarians (adult males are rarely iron deficient); iron deficiency anaemia is rare no matter the diet.[86]

^ Jump up to: a b c "Vegetarians don't eat fish, shellfish or crustacea, but they can still enjoy one of the healthiest diets available". Vegetarian Society. Archived from the original on March 4, 2016. Retrieved March 18, 2018. Many things have changed since the Vegetarian Society was founded way back in 1847, but fish have always been cold-blooded water dwelling animals and vegetarians do not eat animals.
American Vegetarian Party Boston Vegetarian Society Christian Vegetarian Association European Vegetarian Union Happidog Hare Krishna Food for Life International Vegetarian Union Jewish Veg Linda McCartney Foods Meat-free days Meatless Monday Friday Fast Swissveg Toronto Vegetarian Association Vegetarian Society Vegetarian Society (Singapore) Veggie Pride Viva! Health World Esperantist Vegetarian Association World Vegetarian Day
To make sure you’re eating enough protein and calories in general, don’t skimp on plants that offer amino acids and healthy fats. How much protein should you aim to eat each day? While it might be possible to get away with less, I personally think it’s best to divide your body weight in half and eat about that many grams of protein per day. Some of the best plant proteins include natto, spirulina, tempeh, nutritional yeast, green peas, lentils, quinoa and amaranth. 

You already know that a perfect diet doesn't exist, but many of us still can't resist the urge to kick ourselves when we indulge, eat too much, or get thrown off course from restrictive diets. The problem: This only makes it more difficult, stressful, and downright impossible to lose weight. So rather than beating yourself up for eating foods you think you shouldn't, let it go. Treating yourself to about 200 calories worth of deliciousness each day — something that feels indulgent to you — can help you stay on track for the long-haul, so allow yourself to eat, breathe, and indulge. Food should be joyful, not agonizing!
^ "Buddhism and Vegetarianism, The Rationale for the Buddha's Views on the Consumption of Meat" Archived October 7, 2013, at the Wayback Machine. by Dr V. A. Gunasekara" 'The rule of vegetarianism was the fifth of a list of rules which Devadatta had proposed to the Buddha. Devadatta was the founder of the tapasa movement in Buddhism and his special rules involved ascetic and austere practices (forest-dwelling, wearing only rags, etc). The Buddha rejected all the proposed revisions of Devadatta, and it was in this context that he reiterated the tikoiparisuddha rule. (On this see the author's Western Buddhism and a Theravada heterodoxy, BSQ Tracts on Buddhism'
^ Trichopoulou A, Orfanos P, Norat T, Bueno-de-Mesquita B, Ocké MC, Peeters PH, van der Schouw YT, Boeing H, Hoffmann K, Boffetta P, Nagel G, Masala G, Krogh V, Panico S, Tumino R, Vineis P, Bamia C, Naska A, Benetou V, Ferrari P, Slimani N, Pera G, Martinez-Garcia C, Navarro C, Rodriguez-Barranco M, Dorronsoro M, Spencer EA, Key TJ, Bingham S, Khaw KT, Kesse E, Clavel-Chapelon F, Boutron-Ruault MC, Berglund G, Wirfalt E, Hallmans G, Johansson I, Tjonneland A, Olsen A, Overvad K, Hundborg HH, Riboli E, Trichopoulos D (2005). "Modified Mediterranean diet and survival: EPIC-elderly prospective cohort study". BMJ. 330 (7498): 991. doi:10.1136/bmj.38415.644155.8F. PMC 557144. PMID 15820966. Lay summary.
Individuals sometimes label themselves "vegetarian" while practicing a semi-vegetarian diet,[9][42][43] as some dictionary definitions describe vegetarianism as sometimes including the consumption of fish,[8] or only include mammalian flesh as part of their definition of meat,[8][44] while other definitions exclude fish and all animal flesh.[11] In other cases, individuals may describe themselves as "flexitarian".[42][45] These diets may be followed by those who reduce animal flesh consumed as a way of transitioning to a complete vegetarian diet or for health, ethical, environmental, or other reasons. Semi-vegetarian diets include:
It can actually help you cut back on calories. That's because capsaicin, a compound found in jalapeno and cayenne peppers, may (slightly) increase your body's release of stress hormones such as adrenaline, which can speed up your ability to burn calories. What's more, eating hot peppers may help slow you down. You're less likely to wolfed down that plate of spicy spaghetti —— and therefore stay more mindful of when you're full. Some great adds: Ginger, turmeric, black pepper, oregano, and jalapenos.
It's a one-time investment you'll never regret. Here's why: Strength training builds lean muscle tissue, which burns more calories — at work or at rest — 24 hours a day, seven days a week. The more lean muscle you have, the faster you'll slim down. How do you start strength training? Try some push-ups or a few squats or lunges. Use your free weights to perform simple bicep curls or tricep pulls right in your home or office. Do these exercises three to four times per week, and you'll soon see a rapid improvement in your physique.
Additionally, some monastic orders follow a vegetarian diet, and members of the Orthodox Church follow a vegan diet during fasts.[161] There is also a strong association between the Quakers and vegetarianism dating back at least to the 18th century. The association grew in prominence during the 19th century, coupled with growing Quaker concerns in connection with alcohol consumption, anti-vivisection and social purity. The association between the Quaker tradition and vegetarianism, however, becomes most significant with the founding of the Friends' Vegetarian Society in 1902 "to spread a kindlier way of living amongst the Society of Friends."[162]
Nuts, the second food to watch, contain a fair amount of carbohydrate, and it’s very easy to unwittingly scarf down large quantities. Cashew nuts are among the worst carb-wise – you’ll find that they contain around 20% carbohydrate by weight. For someone following a strict keto diet with a 20 grams of carbs per day allowance, this means that consuming 100 grams (which happens in a flash!) will have filled their daily quota. Peanuts tend to be around 10-15% carbohydrate – not putting them in the clear either.
^ Gyani Sher Singh, Philosophy of Sikhism, Shiromani Gurdwara Parbandhak Committee, Amritsar: "As a true Vaisnavite, Kabir remained a strict vegetarian. Kabir, far from defying Brahmanical tradition as to the eating of meat, would not permit so much as the plucking of a flower (G.G.S. p. 479), whereas Nanak deemed all such scruples to be superstitions."
Many people choose to reduce the amount of meat, fish and other animal foods in their diets in order to lower their carbon footprints. Plant foods are “lower on the food chain” and require less natural resources, such as water and others, to produce. According to a report in the American Journal of Clinical Nutrition, manufacturing animal foods requires a higher proportion of water, land, fossil fuels and energy than most plant foods do. (7)
Does this mean that everyone should give up all animal-derived foods in their diets? Not necessarily. Overall I believe it’s possible to be healthy as a vegetarian, or better yet a pescatarian, but for reasons I’ll explain more about below, when it comes to the pros and cons of being a vegan (meaning giving up ALL animal foods), in my opinion it’s usually not ideal.
Make sure that everything you're eating is whole — as in nothing processed or packaged. Since salt is a preservative, these are the foods that are highest in sodium — something to keep in mind when planning your meals. Plan on making sure that all items you choose are fresh. That means filling up on fresh fruits and veggies, whole grains, low-fat dairy, and lean protein.
^ Trichopoulou A, Orfanos P, Norat T, Bueno-de-Mesquita B, Ocké MC, Peeters PH, van der Schouw YT, Boeing H, Hoffmann K, Boffetta P, Nagel G, Masala G, Krogh V, Panico S, Tumino R, Vineis P, Bamia C, Naska A, Benetou V, Ferrari P, Slimani N, Pera G, Martinez-Garcia C, Navarro C, Rodriguez-Barranco M, Dorronsoro M, Spencer EA, Key TJ, Bingham S, Khaw KT, Kesse E, Clavel-Chapelon F, Boutron-Ruault MC, Berglund G, Wirfalt E, Hallmans G, Johansson I, Tjonneland A, Olsen A, Overvad K, Hundborg HH, Riboli E, Trichopoulos D (2005). "Modified Mediterranean diet and survival: EPIC-elderly prospective cohort study". BMJ. 330 (7498): 991. doi:10.1136/bmj.38415.644155.8F. PMC 557144. PMID 15820966. Lay summary. 

^ Jump up to: a b c Davis, John. "History of Vegetarianism: Extracts from some journals 1842–48 – the earliest known uses of the word 'vegetarian'". International Vegetarian Union. Archived from the original on March 18, 2018. Retrieved March 18, 2018. In 1841 the [Alcott House] was re-invented as A Concordium, or Industry Harmony College though the building remained 'Alcott House'. Also in 1841 they began printing and publishing their own pamphlets, which now seem to be lost, but we have the relevant extracts, with the earliest known use of 'vegetarian', from their first journal which began in December 1841[.] 

People who eat a high amount of vegetables and fruit daily tend to have the best protection against weight gain as they age. Because plant-based foods like fresh veggies and fruit are very low in calories yet are high in terms of volume and therefore take up lots of room in your stomach, they are filling and keep you from over-eating. Plant-based (or “mostly plant-based”) diets are tied to a lowered risk for obesity, lower BMI status and reduced complications related to obesity, such as heart problems or metabolic syndrome. (6)
Nuts, the second food to watch, contain a fair amount of carbohydrate, and it’s very easy to unwittingly scarf down large quantities. Cashew nuts are among the worst carb-wise – you’ll find that they contain around 20% carbohydrate by weight. For someone following a strict keto diet with a 20 grams of carbs per day allowance, this means that consuming 100 grams (which happens in a flash!) will have filled their daily quota. Peanuts tend to be around 10-15% carbohydrate – not putting them in the clear either.
Packaged and processed foods, such as cakes, cookies, candies, chocolate, yogurt, and marshmallows, often contain unfamiliar animal ingredients, so may be a special concern for vegetarians due to the likelihood of such additions.[3][5] Often, prior to purchase or consumption, vegetarians will scrutinize products for animal-derived ingredients.[5] Vegetarians' feelings vary with regard to these ingredients. For example, while some vegetarians may be unaware of animal-derived rennet's role in the production of cheese, and may therefore unknowingly consume the product,[3][6][7] other vegetarians may not take issue with its consumption.[3][4]
^ Jump up to: a b OED vol. 19, second edition (1989), p. 476; Webster’s Third New International Dictionary p. 2537; The Oxford Dictionary of English Etymology, Oxford, 1966, p. 972; The Barnhart Dictionary of Etymology (1988), p. 1196; Colin Spencer, The Heretic's Feast. A History of Vegetarianism, London 1993, p. 252. The OED writes that the word came into general use after the formation of the Vegetarian Society at Ramsgate in 1847, though it offers two examples of usage from 1839 and 1842:
A University of Vermont study found that online weight-loss buddies help you keep the weight off. The researchers followed volunteers for 18 months. Those assigned to an Internet-based weight maintenance program sustained their weight loss better than those who met face-to-face in a support group. These are 50 ways you can lose weight without a lick of exercise.
Environmental vegetarianism is based on the concern that the production of meat and animal products for mass consumption, especially through factory farming, is environmentally unsustainable. According to a 2006 United Nations initiative, the livestock industry is one of the largest contributors to environmental degradation worldwide, and modern practices of raising animals for food contribute on a "massive scale" to air and water pollution, land degradation, climate change, and loss of biodiversity. The initiative concluded that "the livestock sector emerges as one of the top two or three most significant contributors to the most serious environmental problems, at every scale from local to global."[207]
To get the most out of a vegetarian diet, choose a variety of healthy plant-based foods, such as whole fruits and vegetables, legumes and nuts, and whole grains. At the same time, cut back on less healthy choices, such as sugar-sweetened beverages, fruit juices and refined grains. If you need help, a registered dietitian can assist you in creating a vegetarian plan that's right for you.
^ Jump up to: a b c "Vegetarians don't eat fish, shellfish or crustacea, but they can still enjoy one of the healthiest diets available". Vegetarian Society. Archived from the original on March 4, 2016. Retrieved March 18, 2018. Many things have changed since the Vegetarian Society was founded way back in 1847, but fish have always been cold-blooded water dwelling animals and vegetarians do not eat animals.
Some vegans choose to take things a step further and stick with to a mostly “raw food diet.” Going on a purely raw diet may sound a bit extreme, but if you look at the food most people tend to eat all the time, you’ll realize that adding raw food to your diet may be beneficial to your body and overall health. Note, however, that folks dealing with digestive issues, such as leaky gut syndrome, are best keeping raw foods to a minimum.
The problem with fasting is that due to severe calorie restriction, your basal metabolic rate (BMR) will decrease. It is thought that fasting can decrease the body’s metabolism by up to 22%. This means that your metabolism will slow down and theoretically, if you were to eat the same amount of calories you did before you started fasting, immediately on the stopping the fast, you would put on weight – not “water weight”, but fat. If this were to happen, you would end up with a higher body fat percentage than when you started.
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
To make sure you’re getting enough healthy fats, include at least one of the following in each main meal: nuts and seeds (like almonds, walnuts, hemp, chia or flax), avocado, olive oil, coconut oil or coconut cream/milk, and butter or ghee if you include dairy products. Even if your diet is overall low in fat, try to still get about 20 percent or more of your daily calories from healthy sources of fat. 

Instead of piling everything on one plate, bring food to the table in individual courses. For the first two courses, bring out soup or veggies such as a green salad or the most filling fruits and vegetables. By the time you get to the more calorie-dense foods, like meat and dessert, you’ll be eating less or may already be full. Nothing wrong with leftovers!
^ Jump up to: a b c Davis, John. "History of Vegetarianism: Extracts from some journals 1842–48 – the earliest known uses of the word 'vegetarian'". International Vegetarian Union. Archived from the original on March 18, 2018. Retrieved March 18, 2018. In 1841 the [Alcott House] was re-invented as A Concordium, or Industry Harmony College though the building remained 'Alcott House'. Also in 1841 they began printing and publishing their own pamphlets, which now seem to be lost, but we have the relevant extracts, with the earliest known use of 'vegetarian', from their first journal which began in December 1841[.]
Protein helps maintain healthy skin, bones, muscles and organs. Eggs and dairy products are good sources, and you don't need to eat large amounts to meet your protein needs. You can also get sufficient protein from plant-based foods if you eat a variety of them throughout the day. Plant sources include soy products and meat substitutes, legumes, lentils, nuts, seeds, and whole grains.

Because plants are low in calories but high in essential vitamins, minerals and antioxidants, vegetarian diets can be very nutrient-dense. Research published in the Proceedings of the Nutrition Society found that “vegetarian diets are usually rich in carbohydrates, omega-6 fatty acids, dietary fiber, carotenoids, folic acid, vitamin C, vitamin E and magnesium, and relatively low in protein, saturated fat, long-chain omega-3 fatty acids, retinol, vitamin B12 and zinc.” (2)
Essentially, the bodies starvation response kicks in (like a crash diet ), in order to conserve energy. In the first 24 hours of the fast your body will utilize glycogen (easily-accessible storage form of glucose, stored in small quantities in the liver and muscles) to provide energy for your various body processes to keep functioning. Once your carbohydrate reserves have been exhausted, your body utilizes stored fats. After several days of fasting, your body begins to break down protein, which is converted into glucose. Much of our muscle mass is protein and thus muscle tissue is often lost. 

Studies found that people who keep food diaries wind up eating about 15 percent less food than those who don’t. Watch out for weekends: A University of North Carolina study found people tend to consume an extra 115 calories per weekend day, primarily from alcohol and fat.  Then cut out or down calories from spreads, dressings, sauces, condiments, drinks, and snacks; they could make the difference between weight gain and loss. Here are 50 easy ways to lose weight naturally.
Packaged and processed foods, such as cakes, cookies, candies, chocolate, yogurt, and marshmallows, often contain unfamiliar animal ingredients, so may be a special concern for vegetarians due to the likelihood of such additions.[3][5] Often, prior to purchase or consumption, vegetarians will scrutinize products for animal-derived ingredients.[5] Vegetarians' feelings vary with regard to these ingredients. For example, while some vegetarians may be unaware of animal-derived rennet's role in the production of cheese, and may therefore unknowingly consume the product,[3][6][7] other vegetarians may not take issue with its consumption.[3][4]
Vitamin B-12 is necessary to produce red blood cells and prevent anemia. This vitamin is found almost exclusively in animal products, so it can be difficult to get enough B-12 on a vegan diet. Vitamin B-12 deficiency may go undetected in people who eat a vegan diet. This is because the vegan diet is rich in a vitamin called folate, which may mask deficiency in vitamin B-12 until severe problems occur. For this reason, it's important for vegans to consider vitamin supplements, vitamin-enriched cereals and fortified soy products.
Low levels of vitamin B12 — You can only get vitamin B12 in substantial amounts by consuming meat, fish, eggs and dairy. Cutting out all of these foods can sometimes be problematic and contribute to vitamin B12 deficiency symptoms like fatigue, weakness and others. For this reason it’s recommended that all vegetarians and vegans who abstain from eating most or all animal foods take vitamin B12 supplements.
You can eat twice as much pasta salad loaded with veggies like broccoli, carrots, and tomatoes for the same calories as a pasta salad sporting just mayonnaise. Same goes for stir-fries, omelets, and other veggie-friendly dishes. If you eat a 1:1 ratio of grains to veggies, the high-fiber veggies will help satisfy your hunger before you overeat the grains. Bonus: Fiber is highly beneficial for preventing constipation, which can make you look bloated.
Omega-3 fatty acids are important for heart health. Diets that do not include fish and eggs are generally low in active forms of omega-3 fatty acids. Canola oil, soy oil, walnuts, ground flaxseed and soybeans are good sources of essential fatty acids. However, because conversion of plant-based omega-3 to the types used by humans is inefficient, you may want to consider fortified products or supplements or both.
If you choose to include a good amount raw foods in your diet, you’ll benefit from obtaining higher amounts of enzymes that serve many purposes. When cooked over a certain temperature, enzymes found in raw food often become destabilized. Enzymes are important because they are needed to break down the food into smaller nutritional units that the body can handle.
Followers of Jainism believe that all living organisms whether they are micro-organism are living and have a soul, and have one or more senses out of five senses and they go to great lengths to minimise any harm to any living organism. Most Jains are lacto-vegetarians but more devout Jains do not eat root vegetables because they believe that root vegetables contain a lot more micro-organisms as compared to other vegetables, and that, by eating them, violence of these micro-organisms is inevitable. So they focus on eating beans and fruits, whose cultivation do not involve killing of a lot of micro-organisms. No products obtained from dead animals are allowed, because when a living beings dies, a lot of micro-organisms (called as decomposers) will reproduce in the body which decomposes the body, and in eating the dead bodies, violence of decomposers is inevitable. Jain monks usually do a lot of fasting, and when they knew through spiritual powers that their life is very little, they start fasting until death.[180][181] Some particularly dedicated individuals are fruitarians.[182] Honey is forbidden, because honey is the regurgitation of nectar by bees [183] and may also contain eggs, excreta and dead bees. Some Jains do not consume plant parts that grow underground such as roots and bulbs, because the plants themselves and tiny animals may be killed when the plants are pulled up.[184]
You can eat twice as much pasta salad loaded with veggies like broccoli, carrots, and tomatoes for the same calories as a pasta salad sporting just mayonnaise. Same goes for stir-fries, omelets, and other veggie-friendly dishes. If you eat a 1:1 ratio of grains to veggies, the high-fiber veggies will help satisfy your hunger before you overeat the grains. Bonus: Fiber is highly beneficial for preventing constipation, which can make you look bloated.
Listen up: Skipping meals will not make you lose weight faster. If a hectic day makes a sit-down meal impossible, stash an energy bar or a piece of fruit in your car or tote, keep snacks in your office desk drawer, and make a point of getting up to grab a nosh — anything that will keep you from going hungry! Going long periods of time without food does double-duty harm on our healthy eating efforts by both slowing down your metabolism, and priming you for another binge later in the day. (Think: You've skipped breakfast and lunch, so you're ready to takedown a whole turkey by dinner!) Make it your mission to eat three meals and two snacks every day, and don't wait longer than three to four hours without eating. Set a "snack alarm" on your phone if needed.
Individuals sometimes label themselves "vegetarian" while practicing a semi-vegetarian diet,[9][42][43] as some dictionary definitions describe vegetarianism as sometimes including the consumption of fish,[8] or only include mammalian flesh as part of their definition of meat,[8][44] while other definitions exclude fish and all animal flesh.[11] In other cases, individuals may describe themselves as "flexitarian".[42][45] These diets may be followed by those who reduce animal flesh consumed as a way of transitioning to a complete vegetarian diet or for health, ethical, environmental, or other reasons. Semi-vegetarian diets include: 

The trick here is not only to avoid all obvious sources of carbohydrate (sweets, bread, spaghetti, rice, potatoes), but also to be careful with your protein intake. If you eat large amounts of meat, eggs and the like, the excess protein will be converted into glucose in your body. Large amounts of protein can also raise your insulin levels somewhat. This compromises optimal ketosis. 
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