low fat/starch high veg/fruit #protein no mention

My target nutritional mix is

  • low fat
  • low starch
  • max raw veg
  • more fiber
  • more fruits
  • more liquid including smoothie and light ice cream

— protein? elephant in the room!

no mention as protein is expensive, hard to prepare and store (except protein powder).

However, I need protein as the replacement source of energy once I remove fat and starch as the main sources.