What technically is the state of excessive body fat storage

Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?

Which is the lipid molecule that controls what types of molecules can pass though?

Is tea good for you? if so what type of tea is good for you? and how much should i drink before it is a threat to my health?