I'm ok with Vegans until........ page 4

[JoanieL]

Ok, before I ask this question, I'm just going to say it: I'm ignorant - which is why I'm going to ask this question.

Aren't there some studies that show that undereating/eating low calories has a positive impact on longevity? Is that congruent with low calorie diets increasing stress/cortisol?

[magicmerl]

Can I see the PROOF that our gut size reduced in size? Do you have the intestines of an early Hominini?

Its more likely that our gut size has been shorter all along and this limited physical feeding niche pushed us indirectly to survive.

A lot of woo woo and no concrete scientific evidence.

Your post seems to imply that I can't possibly prove that.

Here you go: Effects of Brain Evolution on Human Nutrition and Metabolism

Large brains are energetically expensive, and humans expend a larger proportion of their energy budget on brain metabolism than other primates. The high costs of large human brains are supported, in part, by our energy- and nutrient-rich diets. Among primates, relative brain size is positively correlated with dietary quality, and humans fall at the positive end of this relationship. Consistent with an adaptation to a high-quality diet, humans have relatively small gastrointestinal tracts.

This is called the Expensive Tissue Hypothesis.

[cobalamin]

The Vegetarian Myth - YouTube

Look at the nonsense she says.

-agreed about agriculture and processed foods.
-she has no idea what plant cell walls are made of. ruminants can't digest whole plant vegetation either.
-"Insulin is an emergency response?" if eating grains, not fruit. Insulin is one of the body's most anabolic muscle-building hormones, while cortisol/glucagon are catabolic hormones.
-"we need fat to absorb minerals." sure. if your bile is lacking Vitamin D and other bile acids(fat). she doesn't state that Vitamin D is made by UVB radiation of the skin and there isn't enough Vitamin D in foods to fulfill our requirements.
-sure we can eat organ meats however is there enough to supply demand? and fulfill everyone's needs for vitamin A and K?

She says... Humans don't need carbs = ketosis = carnivore. Meat is the only food without carbs.

I care about the truth. Nothing else.

[magicmerl]

She says... Humans don't need carbs = ketosis = carnivore. Meat is the only food without carbs.

I agree that it's as ridiculous to say that humans are carnivores as it is to say that we are herbivores.

Edit: You asked for scientific 'evidence'. Care to comment on the journal articles I posted?

Ok, before I ask this question, I'm just going to say it: I'm ignorant - which is why I'm going to ask this question.

Aren't there some studies that show that undereating/eating low calories has a positive impact on longevity? Is that congruent with low calorie diets increasing stress/cortisol?

There were, but they were effectively rebutted by much more credible research on Rhesus monkeys (the previous research suggesting longevity could be increased by calorie restriction was done on rodents). That's why all the gurus have gone as quiet as a mouse on that one.

[cobalamin]

Actual link to the PDF article. www.pinniped.net/LeonardARN.pdf

Our brains use 500kcals per day. Not really a huge amount of calories.

Its not facts what is written in that article. The article is based on assumptions without any evidence what-so-ever.

If our guts were longer... why didn't we keep eating leaves?

Do you actually believe we evolved from a common ancestor?

I agree that it's as ridiculous to say that humans are carnivores as it is to say that we are herbivores.

Agreed.

[magicmerl]

Our brains use 500kcals per day. Not really a huge amount of calories.

Uh, how many calories a day total do you eat, approximately?

If our guts were longer... why didn't we keep eating leaves?

We could have? But it turns out that it's hell inefficient to eat leaves all day when we can eat a little bit of meat or some starchy tubers in much more energy dense form.

Do you actually believe we evolved from a common ancestor?

Are you asking if I believe in evolution? If so, my answer is yes.

[Kata]

Talk about ignorant, cobalamin. Lierre Keith doesn't say we are carnivores nor does she say we are supposed to be in ketosis at all times. She simply says that life flows from other life, there can be no way of eating that doesn't require killing and to chase that imaginary belief means that more living beings, and indeed entire ecosystems, will have to die for your soy flakes than ever would have been killed for your bacon and eggs. To even believe you can voluntarily step out of the cycle of life is an exercise in insanity and hubris. To find the most ethical place in the cycle of life is to seek out what our evolutionary diet is, as that is the portion of the cycle of life where we are meant to be to do the least damage and make the proper contribution we were intended to make in the fecundity of the earth.

*applause*

[Neckhammer]

How much meat do you have to eat daily?

How long is the prolonged state?

Can I see pictures of someone that has followed ketosis for 3+ months without carb intake, is muscular and hasn't injected themselves with hormones?

So you have questions rather than refuting the facts....thats good. Now go google you some answers.

[JoanieL]

Thank you magicmerl.

Another question for those who know. Even the vegetarian/vegan websites I've visited admit that to get all the nutrients needed, vegans have to take supplements. Wouldn't that in and of itself prove that veganism just isn't optimum as far as health is concerned?

[magicmerl]

Thank you magicmerl.

Another question for those who know. Even the vegetarian/vegan websites I've visited admit that to get all the nutrients needed, vegans have to take supplements. Wouldn't that in and of itself prove that veganism just isn't optimum as far as health is concerned?

How many primal people take supplements?