* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Vegetarians
Survey
Document related concepts
Transcript
1 Alice K. Sutton, MPH, RD, LDN 2 Your Best Sources for Diet Help https://www.hsph.harvard.edu/nutrition source/healthy-eating-plate/ http://www.vegetariantimes.com/ http://www.meatlessmonday.com/ https://www.supertracker.usda.gov/Log in.aspx http://www.nutrisutton.com/ 3 Famous Vegetarians Socrates, Plato, Pythagorus, Plutarch, Leonardo da Vinci, Tolstoy, Shelley, George Bernard Shaw, Thoreau, Gandhi, Johnny Weissmuller (the first “Tarzan”), Bob Dylan, Joanna Lumley, Paul McCartney, Paavo Nurmi (“The Flying Finn” - 9 Olympic gold medals), Martina Navratilova, Chris Evert, Peter Brock, Greg Chappell, Carl Lewis, Killer Kowalski (champion wrestler), Julie Christie, Gillian Anderson, David Duchovny, Alec Baldwin, Kim Basinger, Drew Barrymore, James Cromwell, John Cleese, Penelope Cruz, Joaquin Phoenix, Eric Stoltz, Reese Witherspoon, Steven Seagal, Brooke Shields, Gwynneth Paltrow, Terrence Stamp, Willem Dafoe, Richard Gere, Ellen Burstyn, Woody Harrelson, Ashley Judd, Guy Pearce, Alicia Silverstone, Steve Martin, Jude Law, Mariel Hemingway, Barry Gibb, Bryan Adams, Joan Baez, Damon Albarn, Kate Bush, Leonard Cohen, Dennis Weaver, Ian McKellen, Brian May, Bob Marley, Melissa Etheridge, Peter Gabriel, kd lang, Ricky Martin, Belinda Carlisle, Billy Idol, Shania Twain, Alanis Morissette, Chrissie Hynde, Moby, Meatloaf, Christie Brinkley, Chelsea Clinton, Ricki Lake, Jerry Seinfeld. 4 KEY CONCEPTS Vegetarianism is part of a lifestyle with many attitudes and behaviors Vegetarian diets are pro-environment Vegetarian diets are health-promoting Traditional vegetarian diets provide a wide variety of nutritious foods. 5 Reasons for Vegetarianism Vegetarians number in the hundreds of millions Much of world is mainly vegetarian because meat is scarce and expensive People may adopt vegetarian diets because of: religious beliefs humanitarian concerns desire to cause no harm to animals desire to preserve the environment desire to preserve food supply by “eating low on the food chain” believe that animal products are unhealthful or unsafe want to keep their weight down want to lower the risk of cancer or heart disease 6 Religions of India Hinduism (originated before 1200 BC) Jainism originated ~500 BC Buddhism originated ~500 BC and spread to Tibet, China, and Japan Often Vegetarian due to reverence for life and belief in karma and reincarnation Plant foods have prana, life energy Ahimsa, not harming living beings 7 Greek Philosophers Socrates, Plato, Epicurus and Pythagoras advocated vegetarianism for reasons of compassion: “For as long as men massacre animals, they will kill each other. Indeed, he who sows the seed of murder and pain can not reap joy and love.” Pythagoras ~530 BC 8 Christianity Christian vegetarian traditions include Trappist monks and many others, motivated by compassion and also a desire to live simply. “Not to hurt our humble brethren (the animals) is our first duty to them… men who will exclude any of God’s creatures from the shelter of compassion and pity, will deal likewise with their fellow men.” St. Francis of Assisi, c. 1200 9 Protestant Vegetarian Movement Began in England in early 1800’s Health was the main concern Belief that meat was harmful to the body U.S: Seventh Day Adventist Church, 1863 13 million members worldwide “temperate and healthy lifestyle” Church owns large vegetarian food companies Many church members today are lacto-ovo vegetarians 10 East Meets West Mahatma Ghandi: "The greatness of a nation can be judged by the way its animals are treated." Martin Luther King, Jr: - "One day the absurdity of the almost universal human belief in the slavery of other animals will be palpable. We shall then have discovered our souls and become worthier of sharing this planet with them." 11 "Live simply so others can simply live." - Gandhi Should the humanist movement, with its dedication to affirm the inherent worth and dignity of each individual, consider the worth and dignity of …animals? 12 Health & Environmentalism - "Nothing will benefit human health and increase chances of survival for life on earth as much as the evolution to a vegetarian diet." -Albert Einstein 13 Dec 2015 14 Environmental Concerns Meat protein production requires: 6-17 times more land 4-26 times as much water up to ?? times as much fossil fuel as the equivalent amount of vegetable protein 15 Calories of Fossil Fuel Expended to Get One Calorie of Protein 16 Pounds of grain needed to produce one pound of bread compared to one pound of animal weight gain. 17 Environmental Concerns Emissions of greenhouse gas, carbon dioxide, biocides and compounds that cause acid rain are at least 6x greater for meat production than for plant food production 18 Humanitarian Concerns Farmland used to produce animal feed. This land could support 5-10 X as many people on a vegetarian diet. This may be a concern in our lifetime. 19 Fossil fuels in meat production If everyone in the U.S. ate meatless just one day a week, it would be the environmental equivalent of not driving 91 billion miles per year 20 Today, world food supply is still adequate Enough wheat, rice and other grains are produced to provide every human being with 2,700 calories a day. In addition, are vegetables, beans, nuts, root crops, fruits, grass-fed meats, and fish But many people are too poor to buy readily available food. www.foodfirst.org 21 Vegetarians Never eat meat, poultry or seafood US 3% Canada 4% Sweden 10% India 30% 22 Vegetarians and Flexitarians •American Vegetarian Society says vegetarians eat no meat, poultry, fish Flexitarians eat much less meat than American average May avoid all red meats 23 Healthy Vegetarian Diet Options Lacto-vegetarians Lacto-ovo vegetarians Vegans Timothy Bradley, vegan, two-time former WBO welterweight champion, a two-time former WBC light welterweight champion, and a former 24 WBO light welterweight champion Vegan Diet & Philosophy Empathy for all creatures and appreciation and love of ecology Live without consuming or otherwise harming animals: Eat no animal products Avoid use of animal products This diet requires nutrition knowledge to be adequate especially for pregnant women and children. 25 Vegetarian Diets and Health “Well-planned vegan and other types of vegetarian diets are appropriate for all stages of the life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence Official position of the U.S. Academy of Nutrition and Dietetics (U.S.) and Dietitians of Canada 26 Variety Fruits Vegetables Grains Nuts Seeds Beans Dairy ** 27 Health and Longevity One research study showed that life expectancy of a 30-year-old vegetarian Adventist woman was 85.7 years, 6.1 years longer than average For a vegetarian Adventist man, life expectancy was 83.3 years, 9.5 years longer than average 28 Why are vegetarian diets and flexitarian diets healthier? Causes of Death in US, 2013 In 2013, a total of 2,596,993 deaths occurred in the US. . The first two leading causes of death, heart disease (611,105 deaths) and cancer (584,881), accounted for nearly half of all deaths. Heart disease killed over 300,000 women in 2013. 29 Risk of Cardiovascular Disease 30 Vegetarian diets and flexitarian diets: Higher intake of mono and polyunsaturated fats Lower intake of saturated fats Higher intake of phytochemicals Higher intake of fiber Lower risk of cardiovascular diseases, diabetes and respiratory disease Lower risk of cancer, especially colon and breast cancer Fewer gastrointestinal problems 31 Specific Dietary Fats in Relation to Total and Cause-Specific Mortality, Dong D. Wang, et al. JAMA Internal Medicine, online July 5, 2016 Over 125,000 participants from two large long-term studies—the Nurses’ Health Study and the Health Professionals Follow-Up Study …for 32 years. Researchers from Harvard && examined the relationship between types of fats in the participants’ diets and death rates. 32 Findings: Intake of marine-based omega-3 polyunsaturated fatty acids (mainly from fish) ass. w/ lower respiratory disease mortality and sudden cardiac death. Intake of omega-6 polyunsaturated fatty acids ass. w/ lower risk of total death and death due to cardiovascular disease, cancer, and respiratory disease. 33 Findings, cont’d Those who replaced saturated fats with unsaturated fats—especially polyunsaturated fats—had significantly lower risk of death overall during the study period, as well as lower risk of death from CVD, cancer, neurodegenerative disease, and respiratory disease 34 carbs 35 Saturated Fats And Cardiovascular Diseases Saturated fats cause narrowing of the arteries 36 37 Cancer-promoting diets Cancer-promoting diets: Low in vegetables and fruits High in red meats, saturated fat, regular intake of charred and nitrate-cured meats, and excessive alcohol are associated with cancer Low intakes of whole grains, dried beans, nuts, and seeds increase cancer risk Red meat and colon cancer: 2 studies Study of 478,000 men and women: Those who ate the most red meat (about 5 ounces a day or more) were about 30% more likely to develop colon cancer than those who ate the least red meat (less than an ounce a day). Study of 148,610 people showed a high consumption of red and processed meats was linked to a substantial increase in the risk of cancer in the lower colon and rectum. Red meat and cancer, cont. A meta-analysis of 29 studies of meat consumption and colon cancer concluded that a high consumption of red meat increases risk by 28%, and a high consumption of processed meat increases risk by 20%. Other studies show that eating more red meat increases risk of pancreatic and stomach cancers Eating poultry or seafood is not shown to increase risk, and seafood may decrease risk FOCUS: Phytochemicals Diets containing vegetables, fruits, whole grains, all rich in phytochemicals, are strongly associated with low rates of chronic heart disease and cancer Phytochemicals Chemical substances found in plants Thousands of phytochemicals in plants, and some foods contain hundreds Not essential, we do not develop a deficiency disease if we consume too little The body cannot make them they must be obtained from the diet Phytochemicals and Health Phytochemicals are associated with a reduced risk of developing: heart disease certain types of cancer (lung, breast, cervical, esophageal, stomach, and colon cancer) age-related macular degeneration, cataracts infectious diseases Type 2 diabetes Hypertension, stroke and other disorders Evidence supports role for phytochemicals *Clinical studies to demonstrate cause-and-effect relationships have yet to be completed Antioxidants Many phytochemicals in vegetables and fruits are antioxidants: may participate in cancer prevention by protecting cells from damage due to oxidation and by inhibiting the multiplication of abnormal cells Vitamin C, beta-carotene, vitamin E, and selenium are well-known antioxidants in vegetables and fruits Oxidation can damage and cause cancer initiation Antioxidants are able to repair damaged DNA Summary: Diets high in plant foods reduce: heart disease cancer Type 2 diabetes infections eye disease premature aging and a number of other health problems Possible Problems Diets with few or no animal products may be low in sources of complete protein, vitamin B12, vitamin D, calcium, and zinc With a good traditional diet or with knowledgeable food selection, nutrient inadequacies will not occur 46 Plant Protein Sources Animal products (meat, eggs, dairy) provide all nine essential amino acids in the right balance Soy proteins are also complete protein sources. Body needs sufficient essential amino acids to build and replace protein substances Essential amino acids are not stored, body needs fresh each day 47 Amino Acids low in some plant foods: Grains are low in Lysine Legumes are low in Sulfur-containing amino acids: • Methionine • Cysteine 48 Vegetarian diets combine complementary plant foods 49 Grains Dairy Products Seeds: Sesame, sunflower Legumes Incl. peanuts 50 Food Sources of Protein Milk, 16 oz. 16 grams 1/2 cup oatmeal 3 g Peanut butter sandwich 16 g 1 cup rice and beans 10 g TOTAL 45 grams A 50 lb. Child needs 25 grams protein daily 51 Adult Protein Needs To determine your RDA for protein, you can multiply your weight in pounds by 0.36 to get grams of protein. If you are obese, you can estimate your protein needs using a weight of 200 pounds. The Institute of Medicine sets a wide range for acceptable protein intake—from 10 to 35 percent of calories each day, but the higher intake is often accompanied by a high saturated fat intake. 52 Plant Protein Sources Many combinations of plant foods yield complete proteins Soy products will complement other plant proteins Milk and eggs, like meat, contain complete proteins and will complement the essential amino acids profile of any plant source of protein Complementary protein sources should be consumed throughout the day 53 Vitamin B12 Vitamin B12 naturally present only in animal products Vegetarians who don’t consume animal products can easily obtain vitamin B12 from fortified products such as soy milk and breakfast cereals or from a multivitamin or B12 supplement 54 Vitamin D People get vitamin D from the sun and from fortified milk Vitamin D is found in few foods- most of our intake comes from vitamin D-fortified milk or soy milk (cheese and yogurt seldom fortified) If milk is not part of the diet and exposure of the skin to sunlight is limited, we need to get vitamin D from fortified soy milk, breakfast cereal, or a multivitamin with vitamin D 55 Calcium Sources Vegetarians who exclude milk and milk products rely on: good plant sources of calcium (greens like kale, broccoli, bok choy, and beans) and calcium-fortified products such as soy milk, breakfast cereals, and orange juice If calcium supplements are used, they should include Vitamin D. 56 For more traditional healthy pyramids, go to http://oldwayspt.org/traditional-diets 57 Flexitarian A semi-vegetarian or flexitarian diet is plantbased with the occasional inclusion of meat products Tony Gonzalez's daily 80/20 diet (80 percent plant-based/20 percent fish or chicken). Retired from Atlanta Falcons in 2013 at age 37 58 How Should You Get Protein? More Beans & Nuts: Pintos, limas, black beans, etc Nuts, peanuts, peanut butter, soy foods (tofu) Processed vegetarian foods Hummous How Should You Get Protein? Chicken & Turkey Fish & Shellfish ~Twice a week Low Fat Dairy & Eggs Beef/pork: ~4 oz. Twice a week Make meat part of a meal, not the heart of a meal! Learn about low meat or meatless meals from many cultures The "Meatless Mondays" campaign Can one day a week make a difference? First done in WW I to aid the war effort Returned in WW II to help feed warravaged Europe. Revived in 2003 by Johns Hopkins Bloomberg School of Public Health’s Center for a Livable Future 62 The "Meatless Mondays" campaign Now a global movement -learn more at http://www.meatlessmonday.com/ By pledging to go meatless on Monday just for one month, you will reduce your carbon footprint by almost 33 pounds. So for every 61 people who pledge, we reduce our collective carbon footprint by about one ton per month! 63 The "Meatless Mondays" campaign Who's doing it? On Facebook & Twitter 64 Flexitarian the Easy Way Plan Meatless Monday menus Southern "4 Vegetable Plate" Try new recipes for a few vegetarian main dishes and share ideas with family & friends Plan fish on Fridays Look for vegetarian options when eating out. Look for other meals with small servings of poultry or red meats along with vegetables 65 Making a Difference Share your experiences with "Meatless Monday" campaign and ways you find to reduce meat in your diet. END 66 From “Vegetarian Times” If you want to help animals… If you want to help the environment If you want to help your health… If you want to enjoy your life… …the simplest, quickest and most effective thing to do is to become a vegetarian 67 USDA Diet vs Healthy Harvard? Men who scored highest on USDA’s original Healthy Eating Index reduced risk of heart disease or other chronic disease by 11 percent over 8-12 years of follow-up compared to those who scored lowest. Men whose diets most closely followed the Healthy Eating Pyramid lowered their risk of cardiovascular disease by almost 40 percent over 8-12 years of follow-up compared to those who scored lowest. 68 USDA Diet vs Healthy Harvard? Women who most closely followed the government’s recommendations were only 3 percent less likely to have developed a chronic disease Women with high scores lowered their risk by almost 30 percent. 69