Anti-aging, Diet, longevity Why you should avoid Cottonseed oil cottonseed oil isnothing more than a product of industrial wasteproduced during cottonseed processing. Because itis not considered a food product they can poisonit with sprays, weed killers and there is norestrictions to how much. Dr. Wu Dhi06/05/2013, 5:58 am06/05/2013 0 581