 For the entire 7 years I've been on the carnivore diet, I've always promoted the consumption of high quality animal foods, specifically because they are the only foods that contain the bodybuilding nutrients we need throughout all stages of life. This is what our ancestors consumed to stay free of modern health ailments, free of modern diseases. But our ancestors did not have the food access that we do today. They spent more time in the sun and did not have to deal with nutrient depletion in the soil. One thing that has to be addressed is how many people that are advocating for the consumption of organ meats specifically liver without addressing nutrient synergy. The main nutrients we are concerned to balance are the primary fat soluble vitamins A, D3 and K2. The other nutrients B vitamins, minerals, elements, fatty acids will not be imbalanced granted those three chief fat soluble vitamins are balanced. It's why I don't recommend supplements as fixing every single one of these vitamins and minerals on an individual basis gets very tricky. We know liver has a high vitamin A content and it's important, especially considering most people have been deficient in vitamin A their whole lives. But we've been deficient in all of the fat soluble vitamins. Vitamin D3 and vitamin K2 deficiencies are certainly more prevalent in the general population than vitamin A. Most people will get some vitamin A in their food but no one gets enough sun anymore and even fewer people get enough vitamin K2 from quality and fermented animal foods. The simple reason this is important is that vitamins A and D3 work together but are also antagonistic. High levels of one will deplete the other and they both need vitamin K2 to be utilized. As I said, vitamin A is contained in liver but is also considerable in any quality animal food. Eggs, dairy, animal fats, fatty fish, the plant form beta carotene being in fruits and vegetables. It's actually pretty hard to find a food that doesn't contain vitamin A in any amount. Vitamin D3 is obtained from the sun, it is in smaller amounts in certain fatty fish and can be supplemented in severe circumstances. Vitamin K2 is the hardest to get by far because it cannot be supplemented in the animals diet. It has to be obtained from a natural nutrient rich forage. So low quality meat might have vitamin A but it will not have vitamin K2. Whether it's a cow eating grass or a fish eating wild krill, the vitamin K2 content of the food correlates directly from what it was eating and we know there is a lack of food quality in how we are raising our animals right now. Our ancestors actually would ferment these high vitamin K2 foods at peak harvesting season to increase the vitamin K2 content as well as the beneficial microbes. So as much as I think it's great that people are spreading the message about liver and even high quality animal foods in general, they are missing the big picture. If you were to consume large amounts of liver for long periods of time, the average person doesn't usually get any symptoms. Some people are sensitive to high vitamin A and copper that is contained in foods like beef liver and I have had people come to me with issues related to this which are instantly relieved with vitamin D3 and K2. Pertaining to amounts, we can estimate what the nutrient consumption was from an ancestral perspective. At most, about one pound of liver per week, many many hours of sun per day and probably around one quarter of a pound of fermented animal foods per day. Of course you can consume more liver on occasion and even for weeks at a time but not for months or years at a time. It doesn't seem like you can ever get too much sun or eat enough fermented foods though. Problem is, most people are unable to tan because of their complexion and don't have access to quality animal foods, both things which can be remedied fairly quickly. So the vitamin D3 supplement can really help out here but when you do improve the omega ratio of your diet, when you do consume high nutrient animal foods, your skin is able to tan more and you do become more tolerant to the sun. Just about every single person reports this even on a keto diet, let alone a carnivore diet and you can also get a vitamin K2 and K4 supplement. I do have both of these supplements on my Amazon shop but I do recommend trying to get sun naturally as well as getting your hands on some high vitamin K2 foods like raw cheese before considering supplementing. This problem stems from modern food availability. We are able to consume unrealistic amounts of selected animal parts that are not reminiscent of what we see in nature. For example, during a salmon run, bears are observed eating the brains, bellies and eggs of the female salmon, leaving the flesh to the wolves and other scavengers. Both the fat and nutrient content of the selected animal parts is higher than the latter, which is conducive to development and survival. We humans have done the same in the past, choosing high nutrient, fatty animal foods over other parts of the animal. Modern culture has people scarfing down chicken breast, egg whites, you know, separating the yolks, being afraid of the skin, dark meat, anything that has fatter cholesterol and even in the context of the carnivore diet, people are gravitating towards steak and liver, lean ground beef as opposed to the entire animal. When you are able to buy whatever food you want, you still have to remain mindful of this context of the entire animal. Each animal product as a whole encapsulates all of the nutrients you need. This is much simpler with an egg, an oyster, even dairy products as they have balanced nutritional profiles. When you consume animals with more organs, finned fish, ruminants, you have to eat everything and be a bit more selective than just scarfing down a dozen oysters. It's not as easy as slaughtering a lamb once a month, eating 60 pounds of it and saying your ratios are correct. The ratio of energy to protein that our ancestors consumed was approximately 80-20. So 80% of caloric energy came from carbohydrates and fats and 20% came from animal protein. Be mindful that 1 pound of protein is about 500 calories and 1 pound of fat is 3000 calories. But that is pure protein and pure fat. So in the context of a fatty piece of preferable meat like belly, brisket, short rib, we would have probably consumed anywhere between 1.5 and 2.5 pounds of fatty meat per day depending on body size. There is a huge variance in the amount of fat an animal has stored depending on what animal it is, the breed, the time of year, so you might have a really fat lamb that is able to nourish you for those two months or a starving deer that you only have lean protein from. Whether the caloric energy in the diet comes from animal fat or a carbohydrate source doesn't seem to matter as nutrients can be obtained from leaner meat and organs and we have observed indigenous groups in excellent physical health subsisting mostly off of leaner fish and shellfish. Smaller amounts of animal fat were present in the diet compared to cracking open marrow bones and eating chunks of beef fat yet they were still an optimal health. Inside of the context of those fat soluble vitamins other nutrient concerns that might come to mind are electrolytes, omega 3 to omega 6 ratios but all of these things are fixed when food quality is present and you are eating naturally while still applying some modern logic and science to your diet. Someone tells you to eat egg shells for calcium to sprinkle collagen powder on your steak or that it's okay to stuff your face full of feed lot bacon, conventional eggs. I would take the rest of their advice with a grain of salt. There's objective ways to look at everything, see the pros and cons of them, analyze them, understand them as opposed to being dogmatic about every single thing you're doing. This open-mindedness is what I like to think separates me from everyone else. So thank you guys for joining me, if you could please like the video, subscribe, hit that bell icon, definitely share the video if you can. This by no means is a warning to stop consuming liver, this is a reminder to people that you need to be mindful of vitamin D3, vitamin K2 as well as other nutrients. There's so many things we have to supplement because of modern constituents, things like magnesium and I actually looked through my videos and I didn't have a video specifically on this. I might have mentioned vitamin synergy five, six, seven times but I did not specifically speak about it in a video on its own. So if you guys do want to support me further definitely check out Frankie's for your aged meat bringing you these high quality nutrient-dense animal foods at an affordable price. You can also check out Frankie's Naturals, Minimal Ingredients, Minimally Processed Hygiene and Cosmetic Products to look like the Roman statue of your dreams. Thanks again for joining me guys, enjoy the rest of your week.