The Truth About Hydrogenated Vegetable Oil and Trans Fat
In 1907, Edwin Kayser, a German chemist, wrote a letter to Procter & Gamble about a process of turning cottonseed oil into solid form. Before that, cottonseed oil was a cloudy, red, and bitter because of gossypol, a phytochemical dangerous to many animals because it is linked to abnormal potassium levels, organ damage, and paralysis. [...]

