Vitamin C might do more than just boost your immune system. New research suggests it could also help prevent certain chemical reactions in the stomach that are linked to cancer risk.
Scientists at the University of Waterloo used mathematical models to study how Vitamin C might affect the risk of cancers related to digestion.
How Vitamin C May Help
Nitrates and nitrites are common in many foods, like cured meats, fruits, and vegetables grown in certain soils. While these compounds are good for brain and heart health, they can react in the stomach. This reaction, called nitrosation, creates substances that many scientists believe can lead to cancer.
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Start Your News DetoxThe new study suggests that Vitamin C could stop this nitrosation process. This would reduce the formation of these harmful compounds after you eat.
Dr. Gordon McNicol, a lead researcher, noted that studies on nitrates, nitrites, and cancer have shown mixed results for decades. He believes the presence of Vitamin C in people's diets might explain these differences.
Tracing Reactions Through the Body
The researchers built a mathematical model of the digestive system, including the salivary glands, stomach, small intestine, and blood. They used this model to track how nitrates and nitrites move through the body and change over time.
The results showed that eating Vitamin C with nitrates could lower the amount of harmful compounds formed. For example, leafy greens like spinach naturally contain both Vitamin C and nitrates. The model indicated this combination could reduce cancer risk.
The simulations also suggested that taking a Vitamin C supplement after meals could moderately decrease the formation of these cancer-linked nitrosation products. This includes those found in foods like bacon and salami.
Guiding Future Research
The researchers hope their findings will help shape future studies on nutrition and cancer.
Dr. Anita Layton, a professor of applied mathematics, explained that this work provides a "roadmap" for future studies. It points out key factors that influence these chemical reactions. These factors include how much nitrite someone is exposed to, how many antioxidants they eat, when they eat, stomach conditions, and the activity of mouth bacteria.
This model can help researchers design better experiments. They can focus on when and in whom nitrosation is most likely to happen.
Deep Dive & References
- Vitamin C as a nitrosation inhibitor: A modelling study across dietary patterns and water quality - Journal of Theoretical Biology, 2026
