Showing posts with label health. Show all posts
Showing posts with label health. Show all posts

Sunday, November 22, 2009

Vegetarian Nutrition for Teenagers

by Reed Mangels, Ph.D., R.D.


More and more teenagers are choosing not to eat meat, poultry or fish. They are becoming vegetarians. Teenage vegetarians are often faced with pressures -- pressures from parents concerned about their health, and pressures from within to continue on the path they have chosen.

Variety is the Key to a Healthy Vegetarian Diet

Probably the most frequent questions for teenage vegetarians are about the nutritional adequacy of their food choices. A vegetarian diet can be enjoyed by people of all ages. The key to a healthy vegetarian diet is variety. Just as your parents should be concerned if you only eat hamburgers, they should also worry if you only eat potato chips and salad. A healthy, varied vegetarian diet includes fruits, vegetables, plenty of leafy greens, whole grain products, nuts, seeds and legumes. Some vegetarians also choose to eat dairy products and/or eggs.

Teenage vegetarians have nutritional needs that are the same as any other teenager. The years between 13 and 19 are times of especially rapid growth and change. Nutritional needs are high during these years. The nutrients you will probably be asked about the most are protein, calcium, iron, and vitamin B12.



What About Protein?

North American vegetarian teens eating varied diets rarely have any difficulty getting enough protein as long as their diet contains enough energy (calories) to support growth. Cow's milk and lowfat cheese are protein sources; however, beans, breads, cereals, nuts, peanut butter, tofu, and soy milk are also some foods that are especially good sources of protein. Only fruits, fats, and alcohol do not provide much protein, and so a diet based only on these foods would have a good chance of being too low in protein.



It is not necessary to plan combinations of foods to obtain enough protein or amino acids (components of protein). A mixture of plant proteins eaten throughout the day will provide enough essential amino acids.



Other Important Nutrients for Vegetarian Teenagers

Especially during adolescence, calcium is used to build bones. Bone density is determined in adolescence and young adulthood; so it is important to include three or more good sources of calcium in your diet every day. Cow's milk and dairy products do contain calcium. However, there are other good sources of calcium such as tofu processed with calcium sulfate, green leafy vegetables including collard greens, mustard greens, and kale, and calcium-fortified soy milk and orange juice.



Iron requirements of teenagers are relatively high. By eating a varied diet, a vegetarian can meet his or her iron needs, while avoiding the excess fat and cholesterol found in red meats such as beef or pork. To increase the amount of iron absorbed from a meal, eat a food containing vitamin C as part of the meal. Citrus fruits and juices (for example, orange juice), tomatoes, and broccoli are all good sources of vitamin C. Foods which are high in iron include broccoli, raisins, watermelon, spinach, black-eyed peas, blackstrap molasses, chickpeas, and pinto beans.



Vitamin B12 is a vitamin which only vegans (vegetarians eating no dairy, eggs, meat, fish, and birds) need to add to their diet. Some cereals and fortified soy milks have vitamin B12 (check the label). Red Star T-6635 nutritional yeast flakes (Vegetarian Support Formula) also supply vitamin B12.



Healthy Steps to Your Ideal Weight

Many teenagers are concerned about losing or gaining weight. To lose weight, look at your diet. If it has lots of sweet or fatty foods, replace them with fruits, vegetables, grains, and legumes. If your diet already seems healthy, try to get more exercise -- walking, running or swimming daily, for example.



If you are trying to gain weight, you will need to eat more food. Perhaps eating more often or eating foods somewhat higher in calories and lower in bulk will help. Try to eat three or more times a day whether you are trying to gain weight or lose weight. It is hard to get all of the nutritious foods you need if you only eat one meal a day.



If you feel that you cannot control your eating behavior or if you are losing a great deal of weight, you should discuss this with your health care provider.



Quick Foods for Busy People

With the demands of school and outside activities, it may often seem there is just not enough time to eat. Here are some foods that require little or no preparation. Some of these foods can be found in fast-food restaurants -- check the menu.



Apples, oranges, bananas, grapes, peaches, plums, dried fruits, bagels and peanut butter, carrot or celery sticks, popcorn, pretzels, soy cheese pizza, bean tacos or burritos, salad, soy yogurt, soy milk, rice cakes, sandwiches, frozen juice bars.



A Vegetarian Diet Benefits Your Health, the Environment, and Animals Too!

Vegetarianism represents a positive move toward a cleaner and more compassionate world, a reduction in global hunger, and improved personal health. If you are concerned about the environment, consider meat production's negative impact on tropical rain forests, soil stability, and air and water quality. If you are concerned about animal rights, think about the billions of chickens and other animals slaughtered for food each year in the United States and the conditions in which animals killed for food are raised. If you are concerned about your own health, consider that vegetarians are generally at lower risk than non-vegetarians for heart disease, high blood pressure, some forms of cancer and obesity.

Source: http://www.vrg.org/

Sunday, November 15, 2009

The Canadian Journal of Dietetic Practice and Research Highlights

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The number of people who are adopting a vegetarian diet is on the increase - in Canada it is estimated that about 4% of the adult population chooses a vegetarian eating style. According to a joint position of Dietitians of Canada and the American Dietetic Association published in the June issue of the Canadian Journal of Dietetic Practice and Research (2003;64(2):62-81), appropriate planned vegetarian diets are healthful and nutritionally adequate for people of all stages of the lifecycle. A vegetarian diet also provides health benefits in the prevention and treatment of certain diseases. Registered Dietitian and DC member Vesanto Melina co-authored this position along with American colleagues.
The DC / ADA position details the most current science regarding key nutrients and how to obtain them through a vegetarian diet. Numerous health benefits are also cited - lower levels of saturated fat, cholesterol, and animal protein and higher levels of carbohydrates, fiber, magnesium, potassium, folate and antioxidants such as vitamins C and E.
Vegetarians have been reported to have healthier body weight than non-vegetarians, as well as lower rates of death from heart disease, lower blood cholesterol levels and lower rates of high blood pressure, type 2 diabetes and prostate and colon cancer.
To take the guess-work out of vegetarian meal planning, ensuring that food choices are well-balanced, the authors of the position paper have also devised a Food Guide for North American Vegetarians. The new Guide uses the familiar framework of Canada's Food Guide to Healthy Eating and the US Food Guide Pyramid in making recommendations for numbers and kinds of food choices that would fit a completely plant-based or a lacto-ovo vegetarian eating style. The Guide is also described in the June issue of the Canadian Journal of Dietetic Practice and Research (2003;64(2): 82-86.
For more information on this article, or to interview the lead author, contact the DC Central Information Office at (416) 596-0857 or email us at media@dietitians.ca

Source: Dietitians of Canada

Friday, November 13, 2009

Alguns Benefícios de uma Dieta Vegetariana


Baixa a pressão sangüínea.

Baixa os níveis de colesterol.

Reduz a diabetes tipo 2.

Previne as condições para derrame.

Reverte a aterosclerose.

Reduz o risco de doença cardíaca em 50%.

Reduz o risco de cirurgia no coração em 80%.

Previne muitas formas de câncer.

Sistema imunológico mais forte.

Aumenta a expectativa de vida em até 15 anos.

QI mais elevado.

Conserva até 70% da água limpa.


Poupa mais de 70% da floresta amazônica de desmatamentos para pastos dos animais.

Uma solução para a fome mundial:

Libera até 3.433 milhões de hectares de terra anualmente.

Libera até 760 milhões de toneladas de grãos todo ano (metade do fornecimento de grãos do mundo).

Consome menos combustíveis fósseis do que os usados para produzir carne.

Reduz a poluição de dejetos de animais não tratados.

Mantém o ar mais limpo.

Poupa 4,5 toneladas de emissões por lar americano por ano.

Detém 80% do aquecimento global.

E Mais…

fonte: http://www.suprememastertv.com/pt/Be-Veg/index.php#top1