4 min read
- Low levels of vitamin D might play a role in chronic inflammation, according to recent research.
- Studies indicate that vitamin D deficiency raises levels of significant inflammatory markers, while increased vitamin D intake may alleviate this inflammation.
- Experts clarify the implications for health and share simple methods to boost your vitamin D levels.
Chronic inflammation underlies various health issues, ranging from sleep disorders to cardiovascular diseases. Therefore, addressing chronic inflammation can significantly enhance healthy aging. One effective strategy may involve increasing your intake of vitamin D, particularly if your levels are low. Why is this important? Research indicates that inadequate vitamin D may lead to inflammation. Below, we delve into the study’s findings and offer straightforward ways to boost your vitamin D intake.
Meet the expert: Jackie Newgent, R.D.N, C.D.N., a registered dietitian nutritionist based in Los Angeles.
Published in the International Journal of Epidemiology, the research illustrates a direct correlation between low vitamin D levels and heightened inflammation, offering a crucial biomarker for assessing individuals at increased risk of chronic inflammatory diseases. Researchers at the University of South Australia analyzed random genetic data from 294,970 unrelated participants of White-British descent from the U.K. Biobank. Their goal was to identify the relationship between vitamin D levels and C-reactive protein (CRP) levels, known indicators of inflammation.
Prior research had indicated that insufficient vitamin D could result in elevated C-reactive protein levels, thus signaling inflammation, as noted by dietitian and nutritionist Jackie Newgent, R.D.N, C.D.N.. However, the current study aimed to establish whether low vitamin D levels indeed cause inflammatory responses.
The findings provided evidence that vitamin D levels influence CRP, demonstrating that lower levels of vitamin D do trigger an increase in CRP, a marker of inflammation. Conversely, the study found no evidence suggesting that CRP impacts vitamin D levels, confirming that vitamin D deficiency leads to inflammation but not the reverse.
According to the study’s results, only those with low vitamin D levels exhibited elevated CRP levels, signifying increased inflammation. Fortunately, the research indicates that rectifying vitamin D deficiency in these individuals could reduce inflammation and potentially lower the risk or severity of chronic inflammatory diseases. This suggests that inflammation stemming from vitamin D deficiency is reversible if vitamin D levels are restored to normal, as highlighted by the study.
Despite its strengths, this study has notable limitations. Primarily, it focused solely on participants of White-British descent, which may not reflect the broader population. Moreover, although CRP is a commonly recognized inflammatory biomarker, it does not encapsulate the entire complexity of the immune system. Future research should explore additional specific biomarkers to gain a more comprehensive understanding of how vitamin D might exert its anti-inflammatory effects.
Even though this research was published in 2023, subsequent studies continue to validate the finding that sufficient vitamin D intake helps counter inflammation and lowers chronic disease risk. For instance, a 2025 study highlighted that vitamin D promotes healthier cellular aging, while another piece of research found that it helps lower blood sugar levels, thereby reducing diabetes risk, which is a common chronic illness linked to inflammation.
How to Boost Your Vitamin D Intake
Approximately 35% of American adults are reported to be vitamin D deficient, according to the Cleveland Clinic, meaning many people may benefit from increasing their intake to enjoy the anti-inflammatory advantages of this nutrient. Fortunately, enhancing vitamin D consumption is quite straightforward.
According to Newgent, “most individuals can obtain sufficient Vitamin D by adhering to a nutritious diet alongside regular sun exposure. After all, vitamin D is often referred to as the ‘sunshine’ vitamin!”
If your skin doesn’t receive adequate sunlight or if you are over 65 years old, vitamin D supplements may be recommended. Furthermore, specific health conditions might warrant a discussion with your healthcare provider or dietitian regarding vitamin D supplementation. It’s advisable to have your vitamin D levels tested; your provider can give tailored recommendations about the most suitable dosage and type of vitamin D that might be best for you.
Meanwhile, numerous vitamin D-rich foods can be easily incorporated into your anti-inflammatory diet. Here are some of Newgent’s top foods rich in vitamin D:
- Maitake mushrooms
- Mushrooms such as white button, cremini, and portabella—especially when exposed to UV light
- Certain fortified plant-based products like plant milk, yogurt, tofu, cereals, and orange juice
- Fortified dairy products like milk and yogurt
- Salmon
For those seeking dietary sources, Newgent notes that “mushrooms are the sole produce department option for vitamin D.”
The Conclusion
“This study reinforces the importance of vitamin D for overall health; however, it doesn’t imply that merely taking vitamin D supplements will definitively prevent inflammation,” explains Newgent.
Maintaining a healthy lifestyle and ensuring ample sunlight exposure remain essential for acquiring adequate vitamin D. While we now recognize the link between vitamin D deficiency and inflammation, it is just one of many contributing factors, necessitating further research to fully explore their connection.
Dietary supplements are designed to complement the diet and are not medications intended to treat or cure diseases. Consult a healthcare provider before using supplements, especially if you are pregnant or nursing. It’s also important to seek professional advice before giving supplements to children.
