LIPS THAT TOUCH LIVER...

"People should limit eating liver to once a week and be careful about other sources of vitamin A, say food experts. Too much is toxic and increases the risk of bone fractures, according to advisers to the Food Standards Agency." That's the word from the BBC. So... liver and other sources of vitamin A are dangerous, huh? Well, no. Liver and Vitamin A supplements are. Plant sources, we discover further down in the story, are, in fact, the answer. "Preformed vitamin A, called retinol, is found only in foods of animal origin and is particularly plentiful in liver. Plant foods, such as carrots and spinach, contain compounds that are converted to vitamin A in the body, but it is unlikely that these levels can become toxic."

Vitamin A from plants: Pretty obvious, really, unless you're a Weston Price fanatic.