As the days grow shorter and temperatures drop, fall and winter bring more cold weather and cozy evenings indoors. It can also present challenges for our immune health and mood. While a balanced diet, regular physical activity, adequate sleep, and good hygiene are all important parts of staying healthy, one nutrient deserves particular attention during the darker months, Vitamin D!
The Sunshine Vitamin: Supporting Your Immune System This Time of Year
A healthy immune system depends on a variety of factors, including nutrition. Vitamins and minerals help support normal immune function, and vitamin D plays an important role in regulating immune responses.
Vitamin D is a fat-soluble vitamin that helps your body absorb and use calcium and phosphorus, making it important for strong bones and teeth. It also contributes to normal muscle, immune, and nerve function. Vitamin D2 and vitamin D3 are two forms mainly used to supplement vitamin D. Both help the body maintain healthy bones, muscles, and overall health. Vitamin D2, also called ergocalciferol, mainly comes from fungi and fortified foods, while vitamin D3, also called cholecalciferol, is produced by the skin when exposed to sunlight and is also found naturally in some animal-based foods. Vitamin D3 is generally more effective and tends to maintain levels for a longer period of time and is generally the preferred form when taking a vitamin D supplement. Adding vitamin K is important To D3 supplementation since it increases bioavailability and absorption. Both play important roles in enhancing bone health, immunity, and mental wellbeing amongst many other functions in the body.
Why Vitamin D Matters
Vitamin D is often called the “sunshine vitamin” because our bodies can produce it when our skin is exposed to sunlight. It helps the body absorb calcium and supports healthy bones and muscles, but its role extends beyond skeletal health. Vitamin D also contributes to normal immune function. Research suggests that vitamin D is involved in the activity of immune cells and helps regulate the body’s immune response. The challenge is that vitamin D production from sunlight can decrease during winter. Shorter days, colder temperatures, spending more time indoors, and covering more skin can all reduce sun exposure. As a result, some people may be at greater risk of having inadequate vitamin D levels during the winter months.
Living in Buffalo, NY I recommend taking anywhere from 3,000-5,000 Ius of vitamin D3+K in the winter months. Winter wellness starts before the coldest days arrive. Paying attention to nutrition and making healthy habits part of your routine can help support your body’s normal immune defenses.
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