② protein: milk, skimmed milk powder, cheese, eggs, meat, fish, pork liver, tofu, beans, etc.
3 vegetables and fruits: vegetables and fruits in four seasons, especially red, yellow and green.
④ Algae: laver, kelp, Undaria pinnatifida, etc.
⑤ Oils: butter, artificial cheese, peanut oil, butter, sesame oil, vegetable oil, walnut oil, etc.