I use nutrition and supliments for health all the time.
Ezekiel 47:12
Fruit trees of all kinds will grow on both banks of the river. Their leaves will not wither, nor will their fruit fail. Every month they will bear, because the water from the sanctuary flows to them. Their fruit will serve for food and their leaves for healing."
I see a Naturopath Doctor, and she helps me find what is right.
A good book to get is "Prescription For Nutritional Healing"
They also have a website prescriptionfornutritionalhealing.net
Hope this helps...
Love in Jesus, Shekaniah