* Pores are for sweat and sebum: Skin pores are primarily openings for sweat glands and sebaceous glands (which produce sebum, an oily substance). They're designed to release substances, not absorb them.
* Skin's barrier function: The skin's main function is to act as a barrier, protecting the body from the outside world. It's designed to prevent the entry of substances, including fats.
* Fat molecule size: Fat molecules are relatively large. They are too large to pass through the tiny openings of pores.
* Absorption mechanisms: Skin absorption of certain substances (like some medications in patches) requires specific mechanisms, such as being lipid-soluble and having a small enough molecular size to penetrate the skin cells. Simple fat application doesn't meet these criteria.
* Nutrient Absorption in the Digestive System: The digestive system is the primary site for the absorption of fats. Fats are broken down into smaller molecules, such as fatty acids and glycerol, which are then absorbed through the intestinal walls into the bloodstream.
In summary, while the skin can absorb some substances under certain conditions, fat absorption through pores is not possible due to the skin's barrier function, the size of fat molecules, and the lack of appropriate absorption mechanisms.