Is it true that food conflicts with each other? Scientific analysis and common misunderstandings

The first paragraph: summary of content
The saying that "foods are incompatible" has been circulating among the people for a long time. For example, eating crabs and persimmons together will cause poisoning, and soy milk and eggs will reduce nutrition. In fact, modern nutrition research shows that most of the so-called "food conflicts" lack scientific basis and are more due to misunderstandings or individual differences. This article will analyze the truth about food incompatibility from a scientific perspective, list common misunderstandings, and explain the importance of reasonable combinations. The main content includes: the origins and rumors of food incompatibility, scientific experimental verification results, individual combination cases that need attention (such as specific groups of people or excessive consumption), and how to view dietary combinations correctly.

Paragraph 2: The Origin and Scientific Verification of Food Combinations
The statement that food is incompatible with each other mostly originates from ancient medical experience or accidental events. For example, the "Eighteen Antis" drug taboos mentioned in the "Compendium of Materia Medica" were mistakenly extended to the food field. In 1935, Zheng Ji, a professor at Nanjing University, verified 14 groups of "compatible foods" through experiments and found that there were no abnormalities after healthy people ate them at the same time. The Chinese Nutrition Society also pointed out that the theory that food poisoning caused by food in a normal diet is not valid. For example, the diarrhea case of "crab + persimmon" is actually caused by the combination of tannic acid in persimmon with protein, which affects digestion, rather than a toxic reaction, and it can only occur if a large amount of food is consumed.

Paragraph 3: Common Misunderstandings and Individual Differences
Some "combining combinations" are exaggerated. For example, "soy milk + eggs" is considered to affect protein absorption. In fact, heated soy milk will not inhibit the nutrition of eggs. What really needs attention are specific groups of people or special conditions:
1.High oxalate foods (spinach, tofu): Kidney stone patients need to control their intake, but the general population does not need to worry;
2.Vitamin C and seafood: Only trace amounts of arsenic may be produced in a laboratory environment, and actual consumption is far from harmful levels;
3.Dairy products and antibiotics: The drug instructions will clearly indicate contraindications, which have nothing to do with food.

Paragraph 4: Suggestions on reasonable diet
Instead of focusing on "mutual conflict", it is better to focus on nutritional complementation. For example:
-Vitamin C+Iron(such as fried pork liver with green pepper) can promote iron absorption;
-Fat + fat-soluble vitamins(such as carrots fried in oil) to help release nutrients;
-Coarse grains + refined grainsBalance dietary fiber and blood sugar response. Special groups (such as those with allergies and chronic diseases) should adjust their diet under the guidance of a doctor instead of blindly trusting the list.

Paragraph 5: Summary and scientific attitude
Food conflicts are mostly over-interpretations or false concepts. A balanced and diverse diet is the key. Rather than focusing on a single combination, we should pay more attention to food hygiene (such as separating raw and cooked foods), the principle of moderation and individual tolerance. If discomfort occurs, priority should be given to investigating factors such as food spoilage, allergies, or overdose. Authoritative organizations such as the Chinese Center for Disease Control and Prevention recommend referring to the "Dietary Guidelines for Chinese Residents" rather than folk rumors.

Quote sources:
1. Chinese Nutrition Society’s “Dietary Guidelines for Chinese Residents (2022)”
2. Zheng Ji's "Experimental Research on the Problem of Food Competence" (1935)
3. World Health Organization "Five Key Points to Food Safety"
4. Product examples:BY-HEALTH(vitamin supplements),Arowana(edible oil) and other brands emphasize a balanced diet and do not promote the theory of mutual restraint