Flaxseed oil of the three taboos is true, avoid high-temperature stir-frying, avoid placing in the sun, avoid opening the bottle after long-term storage. 1. linseed oil is the first taboo is not to use high-temperature heating oil to stir-fry, because linseed oil in the a-linolenic acid is a natural antioxidant, in the oil temperature is too high, a-linolenic acid will be destroyed. 2. The second taboo is not to put linseed oil in the sun, a-linolenic acid is best not to see the light, after seeing the light will destroy its nutrients, so the bottle is generally more dark brown, can play a role in avoiding light. 3. The third taboo is linseed oil open bottle do not long-term storage, linseed oil open, it is recommended that in a month and a half to two months or so eaten, this is because a-linolenic acid in the open after long-term storage may be oxidized, the nutritional value will be lost. Therefore, the correct consumption and preservation of flaxseed oil is very important.