There are many cultures in Asia that have largely vegetarian lifestyles and there is information that suggests vegetarians live longer, that meat contributes to cancer, higher cholesterol, too much protein, etc.
There are also many cultures in Asia that are largely lactose intolerant. The diets that we require to be healthy/satisfied vary from person to person enough that I don't think your example holds much weight. What if they've evolved that way? What if they get some of their nutrients from vegetables that we don't have here? I don't know the answer to those questions because I've never asked them until now, but my point is that I don't think it's quite that simple. I'm not disagreeing with your message, just pointing out the possible logical leap.
Ohh man, I'm wasting so much time on all this! ha.
So.. first, I think it's funny that I need to provide a stronger argument that a vegetarian lifestyle wont potentially cause strange evolutionary changes. What about potential evolutionary problem that may arise with people eating a sh*tload of meat?
I can link numerous studies about red meat in particular causing a significant decrease in life span and an increase in cancer risk and other mortal health problems, but I don't see anyone linking me evidence of a vegetarian diet being harmful or unhealthy. Why must I defend my eating habits against others who don't hold their own habits to the same standards by which they judge? If anything, I would assume that by nature, humans would evolve over time to adapt to whatever lifestyle they begin to adopt. I also think it's a strange argument that a lifestyle that is scientificly proven to be beneficial to your health and makes you live longer would cause harm to our species in the long term. I'd like to see evidence to back up those hypotheticals!
Anyway.. Sources!
(and this is just health stuff... not even about animal rights.) - 1 bacon sandwhich = -1 hour off of your life
- regularly eating a small amount of unprocessed red meat (85g, around 3oz) is associated with a 13% increased risk of mortality, while eating a similar amount of processed red meat (a hot dog or two slices of bacon) is associated with a 20% increased risk.
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BBC news- Vegetarian/flexitarian lifestyle show to decrease risk of mortality by all causes by 12% - “Vegetarian diets are association with lower all-cause mortality and with some reductions in cause-specific mortality. Results appeared to be more robust in males. These favourable associations should be considered carefully by those offering dietary guidance.”
* in this study, all participants practice healthy lifestyles
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NHS.UK- Nowadays, plant-based eating is recognized as not only nutritionally sufficient but also as a way to reduce the risk for many chronic illnesses. In July 2009, the American Dietetic Association weighed in with a position paper, concluding that “appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases”
- Compared with meat eaters, vegetarians tend to consume less saturated fat and cholesterol and more vitamins C and E, dietary fiber, folic acid, potassium, magnesium, and phytochemicals (plant chemicals), such as carotenoids and flavonoids. As a result, they’re likely to have lower total and LDL (bad) cholesterol, lower blood pressure, and lower body mass index (BMI), all of which are associated with longevity and a reduced risk for many chronic diseases.
*this article does mention that long term results are difficult to determine because vegetarians/vegans tend to be healthier in general and not just in terms of diet.
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Harvard HealthAs for cultures that are largely vegetarian having special longevity veggies, idk. Maybe that's the case? Or maybe humans are fine on a vegetarian diet? I don't see many people dying from vegetarianism but I do know the number one cause of death in America is heart disease which can be directly linked to eating a lot of meat. So according to the evidence, I would argue that science is currently leaning in my favor on this one in terms of projected long term health.
Again, I'd like to reiterate that although I do believe humans can live without meat, I don't think everyone should necessarily agree with me... I do think it's pretty dense though not to acknowledge that eating a lot of meat, wether it's ethically slaughtered or not, is bad for you.