Is the Acidic Constitution Linked to Cancer? Debunking Myths

Author: Unknown Reviewer: Unknown Curator: Unknown Production/Organizational Information: Unknown Title: Is the Acidic Constitution Linked to Cancer? Debunking Myths Introduction: The article debunks the pseudoscience of "acidic constitution," urging a scientific approach to diet and the fallacy of "alkaline diets." Keywords: ['Mental health', 'Diet and Nutrition'] Main text: "Are you an acidic body? Acidic bodies are prone to cancer, while alkaline bodies are healthier!" This statement has circulated for years like a virus among friends, in health seminars, and even from certain "experts." Based on this theory, countless people have frantically purchased "alkaline water," "alkaline foods," and even experimented with baking soda enemas, all in an effort to change their bodily constitution. However, in 2018, Robert O. Young, the founder of this theory, admitted to fraud in an American court and was ordered to pay hefty fines, officially declaring the "acid-alkaline constitution theory" a complete failure. Yet, the aftermath of this trend lingers, and today we need to thoroughly dismantle this myth from a physiological perspective and provide the public with scientific truth.

First, there is no concept of "acid-base constitution" in the human body. Firstly, from a medical definition perspective, the human body does not have what is referred to as an "acidic constitution" or "alkaline constitution." The body's fluids are varied, with different parts having distinctly different pH levels (acidity and alkalinity), all of which are maintained within strict physiological ranges. Food cannot change the pH level of the blood. The core fallacy of the "acid-base theory" lies in the belief that consuming acidic foods (such as meat, eggs, and sugar) will make the blood acidic, while eating alkaline foods (like vegetables and fruits) will make it alkaline. In reality, the body's buffering systems (such as bicarbonate buffering, hemoglobin, and phosphates) are incredibly robust. No matter how many lemons you consume (even though they are acidic, their metabolic byproducts are alkaline) or how much beef you eat, the pH level of your blood remains tightly regulated at around 7.4. If food could easily change the blood pH, humanity would have gone extinct long ago. The kidneys and lungs work continuously around the clock to excrete excess acids or bases in order to maintain internal homeostasis. The variation in urine pH precisely demonstrates that the body is successfully regulating itself, rather than indicating a change in constitution. Three, the causal inversion of cancer and acidity-alkalinity. Another alarming argument of this theory is that "cancer cells thrive in acidic environments, so an acidic body type is more susceptible to cancer." This is entirely a case of reversed causality. The truth is that cancer cells grow at an extremely fast rate, and their metabolic pattern (the Warburg effect) produces a significant amount of lactic acid, leading to an acidic microenvironment around the tumor. In other words, it is the presence of cancer cells that causes the local area to become acidic, not the acidity of the body that leads to the growth of cancer cells. Attempting to "starve" cancer cells by consuming alkaline foods or changing the body's acidity to prevent cancer is scientifically ineffective. If blood were truly made strongly alkaline, the cancer cells would not die, but the person would instead suffer from alkalosis and potentially die from it. Why is an "alkaline diet" still considered healthy? Since the theory is false, why do doctors recommend eating more fruits and vegetables (the so-called alkaline foods)? It is not because they can change the body's constitution, but rather because they are rich in vitamins, minerals, dietary fiber, and antioxidants, which can actually reduce the risk of chronic diseases and cancer. Conversely, eating less processed meats and refined sugars (the so-called acidic foods) is advised because they contain excessive saturated fats, additives, and empty calories, making them likely to lead to obesity and inflammation. Therefore, healthy dietary advice is based on nutrition, not on acid-base chemistry. Health recommendations cloaked in "alkaline" rhetoric, while concluding correctly (increasing vegetable intake), are fundamentally flawed in logic and can easily mislead the public into extreme practices (such as only eating vegetarian food or drinking soda to treat illnesses). Five: Bid Farewell to Pseudoscience and Embrace Rationality. The collapse of the "acid-alkaline constitution" theory reminds us to maintain critical thinking towards health information. We should not blindly trust those "universal theories" that sound simple, absolute, and claim to explain all diseases. The complexity of the human body far exceeds our imagination, and no single factor (such as acidity or alkalinity) can determine health or disease. We don't need to buy expensive alkaline water or deliberately calculate the acidity or alkalinity of our food. Just follow a balanced dietary guideline: eat more fruits and vegetables, whole grains, moderate amounts of protein, and limit oil, salt, and sugar. Trust science and the body's powerful self-regulating ability; don't let pseudoscience drain your wallet or delay proper treatment.