F - Natural Products
- Fenugreek (fenugreek, fenugreek seed)
- Feverfew (feverfew, bachelor's buttons, featherfew)
- Figwort (figwort, common figwort)
- Fish oil (fish oil, fish oil fatty acids, omega-3 fatty acids, cod liver oil, salmon oil, tuna fish oil)
- Flaxseed and Flaxseed Oil (flaxseed, linseed)
- Folic Acid (folic acid, folate, vitamin B9, folacin)
- Frankincense (Bible frankincense, frankincense, incense, olibanum)
