Has there been any discussion of using smart contracts to aid those who are trying to lose weight?

For example, you could create a smart contract that is connected to a locked container(a cookie jar or similar). You can set this smart contract to unlock for 5 minutes every time a transaction is received.

A separate smart contract, containing a bunch of personalized diet tokens, will transfer 1 token at a specific time every day.

Clearly it would be much more complex than this, but would smart contracts be a good use for diet control? Or would something simple like Amazon Alexa be easier to do this with?