Tofu has 100 calories per 100g.

Tofu should not be eaten in large quantities, as it may contain a small amount of soybeans, but the main ingredient is fish paste from an unknown source, and it often contains large amounts of sugar, oil, and salt, as well as modified starch for thickening and other purposes, which adds calories but no nutrition. In addition, the modified starch contains a certain amount of phosphoric acid.

Processed foods use food additives to enhance taste, flavor and shelf life, and as long as the type and amount of additives are legal, there is no problem. However, too many food additives can make people not taste the original flavor of the food. Hot pot base and meatballs and other frozen hot pot food, the most common food additives are thickeners, freshness enhancers, sweeteners, coloring agents (pigments), color protectors (nitrites), spices, antioxidants, and even water retention agents, preservatives and so on.

Introduction of calories for a healthy human diet

Adults of normal body weight, the ideal body weight calorie requirement for a person who is completely bedridden is 20 kcal, 30 kcal at rest, 35 kcal for light physical labor, 40 kcal for moderate physical activity, and 40 kcal/above for heavy physical labor. The diet should be supplied with 50% of total calories from carbohydrates, 15% from protein intake and 25% from fat intake. Saturated fatty acid intake should be less than 10% of total calories and cholesterol intake should not exceed 30%.

Calorie intake is not standardized and should be calculated based on each person's weight and activity. Labor intensity, age, climate change, body size, weight and health status all affect the number of calories the body needs to consume. A healthy adult woman needs 1,900 calories per day, while a man needs 2,340 calories.