I wonder if it would make sense to have the government heavily subsidize healthy, low GI, low calorie density meal preparation and delivery, bringing it down to

I wonder if it would make sense to have the government heavily subsidize healthy, low GI, low calorie density meal preparation and delivery, bringing it down to the cost of the cheapest junk food? I imagine it would be expensive, but only as expensive as food and delivery of it, and would reduce much more expensive health care costs, right?