Which specific diet adjustments should be made for people with variations of the gene that is responsible for absorption of vitamin C?

This article will explore the fascinating subject of how genetic variation can affect vitamin C absorption, and what dietary changes are available to those with such variations. In this article, as a respected nutritionist and dietician I'll share my research-based insights and experience with readers to provide them with actionable advice.

What Dietary Changes Can Do for Vitamin C Absorption?

Vitamin C, an essential nutrient, is vital for many bodily functions including wound healing and collagen production. Insufficient vitamin C levels in the body can be caused by genetic variations that affect its absorption. This could lead to health problems such as weak immunity or a slower healing of wounds. Understanding these genetic differences and making the necessary diet adjustments is therefore crucial.

The American Journal of Clinical Nutrition published a study that revealed certain genetic variations can affect vitamin C absorption. This highlights the importance of personalized nutrition advice. ( Source ). While some individuals may require higher vitamin C intakes due to genetic variations, excess consumption can lead to nausea and diarrhea.

Important Points for Getting Started

It's important to test for these genetic variants before making dietary adjustments. This process can be guided by a healthcare professional or genetic counselor. You can then begin incorporating the suggested dietary changes.

It is important to remember that our goal is not to dramatically increase your Vitamin C level, but to maximize it. Vitamin C overconsumption can have side effects. Bioavailability can also vary greatly between different sources of vitamin C. In a study published in Journal of Nutrition and Metabolism, it was found that vitamin C should be consumed from different food sources to ensure optimal absorption. ( Source ).

Dietary adjustments for enhanced vitamin C absorption

Other Tips

Maintaining a healthy life style is equally important as dietary changes. Exercise, sleep and stress management are all important for improving your health. Consider pairing foods rich in vitamin C with those that are iron-rich, since vitamin C helps to absorb iron. Avoid smoking, excessive alcohol intake, and other activities that can reduce vitamin C in your body.


Conclusion: Specific dietary changes can help people with genetic variations that affect vitamin C absorption. Maintaining a healthy diet, including a wide variety of foods rich in vitamin C is essential. Remember that you can optimize your health by getting personalized advice tailored to your unique genetic profile. This comprehensive article on the topic highlights its importance, and offers practical advice that is backed up by scientific research.