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It is generally impossible to overdose on vitamin A from carotenoids. Most likely, humans evolved consuming mostly beta-carotene and not pre-formed vitamin A since we have a clear mechanism for converting beta-carotene into retinol but no real mechanism for excreting excess retinol. Getting rid of excess retinol can take years.
The only people who should be consuming pre-formed retinol are the people with the genetic mutation inhibiting beta-carotene conversion and with them, the consumption should be extremely regulated. No more than 800 IU per day.
My research as a scientist is going to center around vitamin A metabolism and the more I study this substance, the more I am convinced that people are chronically overdosing on it in industrialized nations through excessive dairy consumption, vitamin supplements, and fortified foods.
Be careful to research with an open mind then- it feels like you have your conclusion in mind already :)
I’m interested in this but it feels incorrect. With sufficient zinc, vit k, magnesium,vit d, vit c and copper you should be metabolising and transporting retinol - I have had some really positive experiences with lambs liver so I really cant wholly agree with your hypothesis.
Regarding tuna, it’s very rich in selenium to bind to mercury so you’re not going to be ingesting much, and potatoes are not reliable sources of iodine. They’re inconsistent. Note you must eat the skins for iodine, too.
Iodine deficiency is incredibly unpleasant. I figured it was worth being wary of without dairy.
You have a lot of food and nutrient worries and fears man. There are no heroes and villains in health - you must always add context.
I cannot find the study but I read vitamin C can clear excess retinol, as can vitamin D.
But then again, saturated fats don't appear particular harmful and represent a great fuel source (much better than cooked starch, in my opinion)
Liver is also something I would never consume. After having studied vitamin A in my spare time outside of the lab for about a year now, I have come to the tentative conclusion that people should be consuming no more than about 800 IU per day. I think the current rda of 3000-5000 IU per day is far too high. Pre-formed vitamin A is a relatively toxic compound and this is evidenced by the way it is handled in the body. It must be chaperoned by a protein and any vitamin A not chaperoned by this protein causes cell death.
Pubic hair are androgenic.
Are you asking me if the bottle of milk could have been filled with a questionable substance other than milk as a joke? lol so interesting dude haha!!!! I guess jokes about reproductive fluids in food are still funny to some people, even in adulthood!Are you sure the white stuff is milk and not something else? lol
Are you asking me if the bottle of milk could have been filled with a questionable substance other than milk as a joke? lol so interesting dude haha!!!! I guess jokes about reproductive fluids in food are still funny to some people, even in adulthood!
What interesting, helpful, and informative replies. It's great to be on a forum where people take your questions seriously instead of just scoff and reply with sarcasm to something that they're unfamiliar with
There was no sarcasm, just a simple joke. I can't help I never heard of something as you describe being present in milk.Are you asking me if the bottle of milk could have been filled with a questionable substance other than milk as a joke? lol so interesting dude haha!!!! I guess jokes about reproductive fluids in food are still funny to some people, even in adulthood!
What interesting, helpful, and informative replies. It's great to be on a forum where people take your questions seriously instead of just scoff and reply with sarcasm to something that they're unfamiliar with. Kidding, your replies are useless garbage
Coconut oil has no nutrients, and it raises CO2 less than simple sugars; however, it supports sugar metabolism by suppressing the use of unsaturated fats for energy. Coconut oil also has antibiotic effects and, like other fats, stimulates the intestine, so it has anti-inflammatory effects in the gut.So if you didn't have access to any sugar and had to pick between clean starch or coconut oil as the fuel for your body to run on, you'd pick coconut oil? I would think starch would be the better option because the body does better on some form of carbohydrate.
I wonder what Peat would say to this, as he highly recommends liver for most people. Maybe I'll stop taking supplemental Retinol, you got me concerned with the chaperoned protein thing.
some people—I'm certainly not talking about industry-funded Weston A. Price Foundation—would see this added control as a benefit
I realize this is an older thread but to add in for prosperity’s sake.I'm not concerned with modern Brits. I'm talking about pre-vitamin D supplements which was only in the last 20-40 years. How did the biggest empire do everything it did for hundreds of years without vitamin D supplements? Not to mention the thousands of years of evolution in those areas of Europe prior to the empire of people successfully surviving and reproducing with what eventually was high IQ people. And yes many people didn't live long but many people also did live long into their 80's and 90's at the same time. Paul Revere lived to be 83 years old without taking a vitamin D supplement while living in cloudy Boston. And I'm not just talking about Britain. I'm talking about anywhere that there was not that much sunlight or only sunlight in the summer in areas of successful peoples for thousands of years prior to vitamin D supplements. That would include parts of China and some others. I can see how the Tahitians had chiefs that grew up to 7 feet tall because it's the tropics but the vikings were tall and strong and they didn't live and evolve in the tropics and had no vitamin D supplements.
No it's not because vitamin C and vitamin D are different. The fat solubility of D makes it very different. But even still it takes a while to get scurvy. You don't need every nutrient every day. Peat said this in one of the Roddy interviews.