system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If omega 3 fish oils are so good for you why don't we just fry everything in that?
gpt
You can cook with it, but:  "However, due to its high concentration of polyunsaturated fats, fish oil should never be used for cooking. It’s best used as a supplement, one tablespoon per day. Keep in a cool, dry and dark place."

Also, taste. Do you want your french fries to taste like fish?