Liver is indeed a rich source of vitamin A, but unless you’re swallowing an entire bottle of liver capsules at a time there’s no real risk of ingesting toxic levels of vitamin A. My wife and I take 3-6 grams of freeze-dried liver per day, and I often add fresh liver or liver pâté to one of my meals. Our kids get a third of that (usually in the form of capsules). To put that into perspective, 3 grams of freeze-dried liver contains approximately 5,000 IUs of vitamin A. That’s about 116% of the recommended daily allowance (RDA) and well within the “safe limits.”