Guest guest Posted September 20, 2002 Report Share Posted September 20, 2002 This appeared in the latest edition of the McDougall Newsletter. I find it strange that Vegetarian Times would endorse the view that vegetarians have to worry about protein combining. Dr. McDougall has been fighting that issue with the AHA, and now Veg Times has come out with the same misinformation. --------------------------- An Update on " Plants are Complete Protein " Thank you for sharing my concern that influential people are spreading misinformation about the nutritional value of plant foods. In summary, the Nutrition Committee of the American Heart Association has taken the scientifically unsupportable position that plant foods are deficient in amino acids and therefore must be classified as incomplete proteins. I have tried to correct their error. You can read all about this in the August 2002 McDougall Newsletter at www.drmcdougall.com. So far, even after my letters and yours, they have failed to make any correction or further comment. By coincidence, the September 2002 issue of the magazine Vegetarian Times has taken a similar position with an article from the monthly feature " goingveg, " called " Amazing Aminos, " by Susan Belsinger. She says, " Incomplete proteins, which contain some but not all of the EAAs (essential amino acids), can be found in beans, legumes, grains, nuts and green leafy vegetables—from the good stuff vegetarians love. But because these foods do not contain all of the EAAs, vegetarians have to be smart about what they eat, consuming a combination of foods from the different food groups. This is called `food combining. " I have contacted the editor, Laurel Lund, and asked her to review the scientific issues around their incorrect statements and get back to me. So far I have not heard of any plans from the people of Vegetarian Times to correct this very serious error in basic science that undermines the vegetarian movement – surprising! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2002 Report Share Posted September 20, 2002 Although it is true that we can get almost complete proteins (minus B12) from combining the right veg foods, I also believe in the theory that combining proteins and starches is hard on our digestive systems, which have difficulty processing the two together, taking a great deal of energy. Proteins are digested by acid digestive juices, starches by alkaline, so when the two get together they tend to cancel each other out. So our bodies keep producing more and more of both to get the job done, taking a great deal of energy and often leading to gas and indigestion anyway. There is a lot to be said about careful food combining in general. There are reasons why folks get gas from eating beans (including tofu) even alone, which in and of themselves ARE a combination of a protein and starch. There are ways to get around this if you soak and cook your own, but in my experience it doesn't always work. It's mainly Westerners who have this problem, whose systems generally haven't evolved to the point that, say, Asians have who have been eating tofu forever and digest it more easily. Same goes for fruit combined with other foods - any other foods. If someone says they can't eat fruit because they get gas, etc., it's most likely because they combine it with other foods, when it is best to eat it alone on an empty stomach, like in the morning. Basically, if you're a veg and want your proteins, you will probably just have to put up with the gas and possible indigestion. But better that than kills animals for food and help destroy our environment! My two cents - wow, twice this week! Sue kmeldrum wrote:This appeared in the latest edition of the McDougall Newsletter. I find it strange that Vegetarian Times would endorse the view that vegetarians have to worry about protein combining. Dr. McDougall has been fighting that issue with the AHA, and now Veg Times has come out with the same misinformation. --------------------------- An Update on " Plants are Complete Protein " Thank you for sharing my concern that influential people are spreading misinformation about the nutritional value of plant foods. In summary, the Nutrition Committee of the American Heart Association has taken the scientifically unsupportable position that plant foods are deficient in amino acids and therefore must be classified as incomplete proteins. I have tried to correct their error. You can read all about this in the August 2002 McDougall Newsletter at www.drmcdougall.com. So far, even after my letters and yours, they have failed to make any correction or further comment. By coincidence, the September 2002 issue of the magazine Vegetarian Times has taken a similar position with an article from the monthly feature " goingveg, " called " Amazing Aminos, " by Susan Belsinger. She says, " Incomplete proteins, which contain some but not all of the EAAs (essential amino acids), can be found in beans, legumes, grains, nuts and green leafy vegetables—from the good stuff vegetarians love. But because these foods do not contain all of the EAAs, vegetarians have to be smart about what they eat, consuming a combination of foods from the different food groups. This is called `food combining. " I have contacted the editor, Laurel Lund, and asked her to review the scientific issues around their incorrect statements and get back to me. So far I have not heard of any plans from the people of Vegetarian Times to correct this very serious error in basic science that undermines the vegetarian movement – surprising! *To share a message with the group: *Got Questions? We got answers! See the SFBAVeg FAQ at http://www.generationv.org/faq.htm Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2002 Report Share Posted September 20, 2002 Sue, I hope you don't mind my butting in here.For any given individual, eating one way or another might help their digestion. And this might change over time for a variety of reasons. But, I'd like to respond to some of the points below: > Proteins are digested by acid digestive juices, starches by alkaline, The stomach has an acid medium and the small intestines has an alkaline medium. Protein is " denatured " in the stomach from the acid. The acids also convert pepsinogen into pepsin, an ezyme that starts to digest the protein in the stomach. But, the bulk of protein digestion occurs in the alkaline medium of the small intestines, just like carbohydrate digestion. All foods must pass through both an acid (stomach) and alkaline (small intestines) medium. Also, there really are few plant foods that are only protein (and the ones that are, are that way because of a great deal of processing.. The largest unprocessed source of protein in plant foods are beans, which also contain a lot of carobhydrates. So, you can't really avoid combining them at a particular meal. > so when the two get together they tend to cancel each other out. So our bodies keep producing more and more of both to get the job done, taking a great deal of energy and often leading to gas and indigestion anyway. There is a lot to be said about careful food combining in general. There are reasons why folks get gas from eating beans (including tofu) even alone, which in and of themselves ARE a combination of a protein and starch. Research shows that people get gas from eating beans because we do not generally have the digestive enzymes needed to break down the long sugar chains, one of which is fructooligosaccaride (FOS). Since we do not digest this sugar found in beans, it gets digested by bacteria in the large intestine and gas is produced as a byproduct. I don't know if research has shown why some people don't get gas from beans. My guess is that these people either have developed the enzymes necessary to digest the FOS (which seems pretty unlikely, but possible) or their bacteria either do not digest the FOS or they do not produce gas when doing so. > Basically, if you're a veg and want your proteins, you will probably just have to put up with the gas and possible indigestion. But better that than kills animals for food and help destroy our environment! You can also take beano which contains the enzyme that breaks down FOS. And, other things seem to work too -- gradually weaning yourself onto beans works for some people. Jack Norris, Registered Dietitian PO Box 4305 Davis, CA 95617-4305 916-375-0014 http://www.jacknorrisrd.com/newsletter Quote Link to comment Share on other sites More sharing options...
Guest guest Posted September 20, 2002 Report Share Posted September 20, 2002 just as a side note- don't know how many of you actually read Vegetarian Times but they have begun to make it abundantly clear that their magazine is not really geared towards vegans and vegetarians, it's for people who wantt o eat a healthier diet and have a healthier life style.(they now have regular fashion spreads, clothing and housewares?not even necessarily natural products.) Having had a subscription for many years i have seen the evolution of what used to be a wonderful resource for vegetarian recipes and products to a meatless version of Cooking Light (published by the same company, eh?). Not to discourage readership but just to say that it does not surprise me that they are printing misinformation. cheers melody Care2 make the world greener! Your Actions Can Help! Support Strong Environmental Protections http://www.care2.com/go/z/2532 Quote Link to comment Share on other sites More sharing options...
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