A beautiful body is the manifestation of a beautiful spirit.
A spirit that is loving and caring and immersing itself in a natural habitat, will definitely acquire innate qualities of that habitat.
You seldom find fat tigers of fat wild horses or fat birds, and that for a reason:
The balance and equilibriums are always maintained unless you do something wrong, as creating and eating processed food that lasts longer than it should be, or staying all day in a position that is not natural, or simply not having enough sun and wind exposure.
A beautiful body is a body and spirit in equilibirum. Natural habitat can help you retrieve some of that.