D Bergy said:
Beware of statistics. You need to find the whole story before giving to much credence to them. Maybe meat eaters get colon cancer more often, but these type of statistics do not happen in a vacuum. It is difficult to get proper nutrition without meat in the diet. Quit often if you dig deeper you will find that vegetarians have an equally bad disease that comes from their eating habits.
I have also heard, but not verified that vegetarians have a shorter life expectancy then people who eat meat. Might be worth checking it out. If that is the case than it really does not matter if colon cancer is reduced, since something else is going to get you anyway.
I do not know the real facts in this case, but have found these type of studies lacking for the reasons outlined above.
Let me know if you find out some statistics on life expectancy.
Dan
Completely untrue. There's not one thing vegetarians have a deficiency in. Even without considering supplements like a multi-vitamin.
Protein? Your average vegetarian gets more protein than your average meat eater. Vegetarians also get a healthier mix of protein types. What Vegetarians get less of (and it's the main nutritional difference) is fat. While a beef hamburger may have 25% fat and 75% protein, a vegie burger has 0-5% fat, 5-10% carbohydrates, and 90-95% protein.
Iron? 12.8% of your daily recommended iron for a hamburger. 10% for a vegie burger. Spinach is 5%. Broccoli is 4%. Tofu is 9%. Peanut butter is 3%. Bread is 4%. A small bowl of total cereal in the morning will give you a whopping 124% of your daily Iron.
All of this has far fewer calories too. Vegetarians after a few years have an extremely low incidence of obesity which is pretty much the #1 killer. The low fat intake reduces the incidence of everything from heart disease to diabetes and colon cancer, and it helps with digestive problems like crohn's.
The only studies that have supposedly shown vegetarians have problems or have a lower life expectancy than meat eaters use the following proposition: People who have (Insert vitamin/nutrient here) deficiency have this life expectancy. The problem here is that it has nothing to do with vegetarians. They make absolutely no connection to vegetarians even having such deficiencies. Yes, if you have a calcium deficiency you will have weaker bones. That does not mean vegetarians have weaker bones because there's nothing that says vegetarians get less calcium.
On the other hand here's a link (
http://www.veganhealth.org/articles/research) providing the results cumulated from the 4 largest studies on the matter before 1999 showing a 15% reduction in mortality for vegetarians. 18% for fish vegetarians (which is what I am). And that's before anyone knew what we know now about nutrition and before we had the supplements and meat alternatives that we do today. The things available to vegetarians today are completely different from 10 years ago.
If you want to cite the Adventist Studies that people incorrectly say show a lower life expectancy for vegetarians, they covered a population who are only 29% vegetarian and in 1976-1988 they lived 2.87 years longer than non-Adventists. They have other differences like not smoking or drinking though so the Adventists can pretty much be ignored when compared to the general public for any one specific thing.
My wife is actually studying to be a nutritionist and nutritionists usually hold vegetarians in high regards.