The more prosperous life is, the higher the health awareness of the people. In the case of “everything you can eat, everything you can eat”, people seem to be more and more concerned about the efficacy of food to prevent diseases, and the expressions of “cancer prevention food” and “anti-cancer food” are becoming increasingly popular. The expressions of “cancer-preventive food” and “anti-cancer food” have become increasingly popular. So, are there any “anti-cancer foods” or “anti-cancer foods”? In this era of information explosion, people are easily exposed to various information and propaganda about “anti-cancer foods” and “anti-cancer foods”. The titles of “Top 10 Internationally Recognized Foods for Preventing and Combating Cancer”, “Top 10 Best Foods for Preventing and Combating Cancer”, “Top Foods for Preventing Cancer” and so on are very tempting, aren’t they? Therefore, many people may go to a misunderstanding: the so-called “anti-cancer” and “anti-cancer” effects of these foods are exaggerated and idealized, and they even have to eat them at all times and at all meals. However, long-term excessive consumption of certain types of food may cause nutritional imbalance, disturbance of the body’s internal environment, decrease of resistance and even diseases. We do not deny that some foods do contain substances that can inhibit tumor cells. In addition, many scientific studies have shown that the consumption of certain foods can reduce the risk of developing certain types of cancer. However, if we call these foods “anti-cancer foods” or “anti-cancer foods”, we may take them out of context and mislead the public. Then, how should we view the influence of diet in cancer prevention and fighting? Adhering to the healthy and scientific dietary principles of “variety, balance, nutrition, hygiene and moderation”, and not blindly hoping to eat more certain foods, may be the real way to prevent and fight against cancer.