Our bodies lack tons of nutrients. Been a vegetarian for 30 years but the ground has hardly no nutrients and you could literally starve to death going vegetarian.(vegetarians living well balanced diets live average 7-10 yr longer than meat eaters--I used to be heavy meat eater) Don't remember the exact facts, but a tomato has 1/30 the nutriants that it had 50 years ago. Any there is an almost free natural supplement one cne take called green clay. If you can get a copy of the dvd you'll be amazed. The very best price I've found is a Christian non profit group that sells it.