Vitamin D has been found to play a crucial role in maintaining optimal health, including reducing the risk of colorectal cancer. A recent study published in the journal Nutrients analyzed data from 50 studies on vitamin D and colorectal cancer, revealing that individuals with higher dietary intake of vitamin D had a significant decrease in colorectal cancer risk.
Researchers discovered that consuming at least 80 ng/mL of vitamin D was associated with a 25% lower risk compared to those with lower levels (10 ng/mL). The study also found that women with the highest vitamin D intake had a 58% reduced risk of colorectal cancer.
Vitamin D is believed to support immune system regulation and gut health, which are essential in preventing colorectal cancer. Adequate vitamin D levels can enhance the function of important organs like the spleen and lymph nodes, while boosting T-cell activity to fight infection and cancer.
Conversely, vitamin D deficiency can weaken the intestinal barrier, allowing harmful substances from the intestine to enter the bloodstream, leading to inflammation that fuels cancer growth. Maintaining optimal vitamin D levels may help reduce this inflammation.
According to the Cleveland Clinic, approximately 35% of U.S. adults are deficient in vitamin D. The daily recommended dietary allowance is 600 IU for those aged 1-70, while older adults require 800 IU per day. However, it’s essential to consult with a doctor before taking supplements, as they can interact with certain medications.
Supplementing through sun exposure or food sources like salmon, orange juice, milk, and mushrooms can also help boost vitamin D levels. A study found that five to 30 minutes of daily sun exposure between 10 a.m. and 4 p.m., without sunscreen, was effective in meeting vitamin D needs.
Maintaining optimal vitamin D levels is crucial for preventing colorectal cancer and improving patient prognosis. Consulting with a doctor about the appropriate dose is vital to avoid excessive vitamin D toxicity, which can lead to serious health issues like kidney stones and bone pain.
Source: https://fortune.com/well/article/vitamin-d-supplements-lower-risk-colorectal-cancer