I'm not sure what sugar beets are. Maybe sugar beets are what we call beetroot in Australia, but maybe not. Do a search on the net for beetroot pics.
Beetroot when peeled/cut when it's raw is very purply red inside and can stain your hands. You can buy it in the supermarket tinned or buy it in the fruit/veg store fresh.
When dealingwithlowiron, fresh beetroot is the only way to go. Either shred it into a salad or juice it with other fruit/veg. I juice beetroot, apple, carrot, bit of ginger and some orange. It tastes amazing. Beetroot is a great blood purifier and is an anemics best friend.
Yes, i'm sure liver wouldn't be your families number one choice at the dinner table :) I think out of all the livers that chicken liver is the tastiest. If you can make the beetroot juice you can stop with the liver/offal.