Answer

Ingredients good for dieting ① Chicken breast ② Pork ③ Beef ④ Mackerel Among these, the one with the best nutritional balance is 【Mackerel】 (blue fish). Chicken breast, famous for being high in protein and low in carbs/fat, is an excellent source for additional protein, but it doesn't contain many other nutrients. Pork is quite excellent. While it might be slightly higher in calories than chicken, it's rich in Vitamin B complex, which is involved in metabolism. Beef also contains Vitamin B complex, but in terms of balance, pork gets the nod. Mackerel... It has a lot of fat and is indeed high in calories, but mackerel's fat is unsaturated fatty acids like DHA. It's different from saturated fatty acids found in lard, tallow, or butter. Above all, look at the vitamin balance! It's excellent, isn't it? Especially the content of B12, known as the "hematopoietic vitamin"! This is really hard to get from land-based foods. Mackerel alone is a multi-ingredient food that covers not only protein but also good fats, minerals, and vitamins. Therefore, from the perspective of "balancing" in its original meaning, the most suitable ingredient for dieting was 【Mackerel】. By the way, my recommendation order is Mackerel > Pork > Beef > Chicken breast.