There must be two kinds of fatty acids in human life to survive. One is saturated fatty acid (that is, meat, chicken, duck and other fats that we usually eat, but also have calories, which is saturated fatty acid), and the other is unsaturated fatty acid. Modern people are not short of meat. On the contrary, eating too much meat affects the balance of nutrient intake, and there are a lot of unsaturated fatty acids in aquatic products. Unsaturated fatty acids can also reduce blood lipids, which is conducive to coordinating the proportion of two fatty acids in the human body.

Therefore, the formulation of "appropriate increase" is correct, and neither party can neglect it.