this treats the creation of a cheap, nutritional shake as a constrained optimization problem, where you want to:

• minimize the cost of each shake
• meet some minimum nutritional content targets
• under some maximum shake size (currently 18oz)

notes:

• get a USDA NDB API key from: https://ndb.nal.usda.gov/ndb/doc/index
• add ingredients to ingredients.yaml in the format:

- id: '<NDB id>'
  cost: <cost/g>

• to search for a food: python search.py "<QUERY>"
  • the USDA NDB has multiple entries for many foods with varying quality of information, so make sure you pick one with as much info as possible. You can check at https://ndb.nal.usda.gov/ndb/search/list
• to generate a mix: python mix.py