 |
Reply To This Post Return to Posts Index VegSource Home
| From: | Bryanna (NewVeggies.vegsource.com)
| | Subject: | Re: don't know where to start | |
Date: | December 22, 2008 at 8:02 am PST |
In Reply to: don't know where to start posted by Franco on December 22, 2008 at 1:40 am:
I urge you to read Chapter 16, “The Vegan Athlete”, in the excellent book “Becoming Vegan” by registered dieticians Vesanto Melina and Brenda Davis. Here are some excerpts: “…Exercise can lead to increased energy output for up to 24 hours after the exercise has stopped. This is a very minor increase, but it can make a difference in the long term. In addition, eating a whole foods vegan diet may increase energy requirements by up to 10-15 percent due to reduced overall digestibility of high-fiber whole foods. …For those training more intensely several times a week, energy needs can be as high as 3000-6000 calories a day or more. If you are constantly lacking energy, the problem may be that you are eating too little. Many athletes restrict energy intake in an effort to maintain a low body weight. Interestingly, this can seriously impair performance by lowering metabolic rate and reducing energy available for activity. When you increase food intake, your metabolism generally returns to normal and your energy levels skyrocket. In fact, athletes have been known to increase energy intakes by 1000 calories or more per day, vastly improve performance, and not gain an ounce.” And: “It is widely believed that the most important nutrient for athletes is protein, and the more, the better. While protein is a very important nutrient for athletes, it contributes only about 3-6 percent of the total fuel used and is needed in smaller amounts than the other energy-giving nutrients. Athletes who eat carbohydrate-rich diets use even less protein for fuel than those who consume higher-protein and fat diets. (Carbohydrate has a protein-sparing effect.) In addition, more highly trained athletes tend to use less protein for fuel during exercise, depending on the type of activity; caloric intake, intensity of training, etc.” “The general recommendation of 12-15 percent protein is appropriate for most vegan athletes, although for those with low caloric intake (athletes attempting to keep body weight low), 15- 20 percent may be necessary. For those with extraordinarily high caloric requirements (such as Ironman athletes), 10-12 percent may be sufficient. For example, a 50 kg (110 lb) gymnast who requires about 1.4 g protein/kg body weight needs about 70 g protein per day. If she eats only 1600 calories per day, her protein needs would be 17.5 percent of total calories. On the other hand, a 70 kg endurance athlete who requires 1.4 g protein/kg body weight needs about 98g protein/day. If he eats 4000 calories, his protein needs would be about 10 percent of total calories. When receiving protein solely from plant foods, as is the case for vegans, protein requirements may be higher than for non-vegetarians due to a reduced digestibility of certain plant proteins. For those consuming more highly processed and soy-based plant proteins (veggie “meats”, tofu, and soy shakes) no increase in protein above non-vegan athletes is generally required. For those relying more on whole foods (legumes, nuts and seeds), an increase of 10-15 percent will compensate for the reduced digestibility of these foods. Using a variety of protein sources will help ensure a reasonable protein intake.” “It is not necessary to use protein powder shakes or bars to get sufficient protein. However, if you have difficulty meeting energy and protein needs, they can be helpful, for example, for non-cooks or especially while traveling…” Lastly… “…Eating excessive amounts of protein will not increase the muscle mass or improve athletic performance but could be detrimental to performance or overall health. Surplus protein gets converted to fat and stored or oxidized for energy. Amino acid oxidation increases risk of dehydration, because by-products of protein metabolism must be excreted via the urine…" You might want to read the Vegetarian Resource Groups sports nutrition guidelines for vegetarian athletes. It explains about dietary needs and has a meal plan. http://www.vrg.org/nutshell/athletes.htm You might also find this excerpt from an interview with Jane Black, a champion vegan bodybuilder, interesting: http://www.jivdaya.org/jane_black.htm Many athletes are concerned about adequate protein intake. Explaining her experiences, Jane says: "According to various elite weightlifting coaches, protein requirement for a highly competitive weightlifter is 2 to 2 1/2 grams per kilo of bodyweight. If I adhered to that, I would be eating about 150 or so grams of protein, which I feel is ridiculous. I eat probably about 60-75. I have never had a problem building strength. The variables for strength building vary greatly for individuals, - genetics, general state of health, and training program. All of these factors and more must be monitored ongoing if a person wants to take on a sport, or build strength or explosive power, which Olympic lifting is all about. I fully believe that a person can be incredibly strong as a vegan. If you are going for a bodybuilder 'look,' i.e. extreme hypertrophy, low body fat, a vegan diet will have its drawbacks, but then I would challenge you to ask yourself why that is important to you. Most of the pictures of contest ready bodybuilders on popular magazines [used] a ton of unnatural and pathological dietary practices to achieve that look." You can read more and find more links here; http://www.bryannaclarkgrogan.com/page/page/2264686 .htm#44007 I would also like to add that, though you absolutely don't need to use soy protein supplements, don't be afraid of soy! I have a whole page on this issue on my website: http://www.bryannaclarkgrogan.com/page/page/3476771 .htm Furthermore, Seventh-Day Adventist vegetarians have eaten alot of "processed soy" (soy burgers, canned soy products, etc.) since the late 1800's and they have been the subjects of many health studies. The average Seventh Day Adventist has a longer life span and a greater level of health than the average American.
Reply To This Post Return to Posts Index VegSource Home
Follow Ups:
|
|