I use water shoes. Cost around 15.00 a pair and last at least three or four months. Perfectly flat, flexible and come in black so I can wear them at work while I walk the hospital all day. I learned not to heel-strike in about fifteen minutes. Proper form will generally come naturally. Feel a small nagging pain? Watch your step form in a large mirror and trouble-shoot.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.