I just found out there is a thing called Vitamin A poisoning. For instance, eating polar bear liver could literally kill you because of the extreme amount of Vitamin A it contains.
Now, I’ve seen people say that eating cod liver (the actually liver, not the oil) is healthy. I got a small 60g can of it and at the back it says that even just half the can contains 280% of Vitamin A’s Daily Value. Which means the whole can (and I do insist to specify it is quite small, so eating the whole can is super easy) has 560% of Vitamin A’s DV.
Isn’t that dangerously high? Cod liver is being recommended as something healthy but these same people don’t warn you about Vitamin A toxicity so I’m a bit confused…
Looking forward to reading your answers!
Hi my PhD is on vitamin A. The daily value for preformed retinol (the type of vitamin A in liver) is 900 mcg per day and the tolerable upper limit is 3000 mcg. So one serving periodically and you are fine. However, don’t do this regularly. There are reports of toxicity from habitual consumption as low as 1500 mcg/d.
I would argue if you spread it out so that it equates to about 100% per day average it’s fine. Yes it’s true about Vit A toxicity, so don’t eat it every day, half a can every 3 days would average it out to 100%.