If this revolving around cycling discussion or is this just a general diet question?
I'd just eat beets if you are asking about general diet and health. I like them simmered or steamed. Young beets I've sliced thin and put in my salads. Sort of messy though with beet juice getting on your fingers and everything you touch.
Might surprise you the next day when you look in the commode and see red streaks in the water. <grin>