Humans didn't evolve eating potatoes, tomatoes, etc. nor grains for that matter.

On the Atkins diet I found my ability to walk pain free returned in the first three days - the nurse and doctor I have told maintain it is entirely coincidental.

Yea, right.

Luckily I could always sit and play my guitar and other instruments, it was just my back, hips, knees, ankles - all the mobility involved joints.