Melanin & Midwest Winters: Is Your Vitamin D Low?

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
March 19, 2026

The biting wind whips off Lake Michigan, a familiar sting to Chicagoans. But beyond the discomfort, winter in the Midwest hides a silent threat, especially for those with darker skin: Vitamin D deficiency. This isn’t just about feeling a little sluggish; it’s a serious health risk, and ignoring it can have long-term consequences.

The problem is simple: sunlight is our primary source of Vitamin D. Melanin, the pigment that gives skin its color, acts like a natural sunscreen. While beneficial in sunny climates, it significantly reduces Vitamin D production in areas with limited sunlight, like Illinois, Indiana, and Ohio, particularly during the long, gray winters.

For Midwesterners with higher melanin levels, the risk is amplified. The sun’s rays are weaker and fewer hours of daylight mean less opportunity for Vitamin D synthesis. This creates a perfect storm for deficiency.

So, how do you know if you’re at risk? Common symptoms include fatigue, bone pain, muscle weakness, and even mood changes. These symptoms are often dismissed as “winter blues,” but they could be a sign of something more serious. Don’t shrug them off.

Let’s talk specifics. Imagine you’re living in Indianapolis. You work a 9-to-5 job, meaning you’re inside during the peak sunlight hours. You’re of African descent, and winter has just begun. Your risk of Vitamin D deficiency is significantly elevated.

What can you do? First, get tested. A simple blood test can determine your Vitamin D levels. Ask your doctor for a 25-hydroxyvitamin D test. This is the most accurate way to assess your status.

Next, consider supplementation. Not all Vitamin D supplements are created equal. Vitamin D3 (cholecalciferol) is generally considered more effective than Vitamin D2 (ergocalciferol). Look for a supplement that provides at least 2000-5000 IU (International Units) per day, but always consult with your doctor to determine the appropriate dosage for your individual needs.

Choosing the right supplement is crucial. Many over-the-counter options contain fillers and additives. Opt for reputable brands that undergo third-party testing for purity and potency. Look for certifications from organizations like USP or NSF International.

Now, let’s address a common pitfall: inconsistent supplementation. Taking a high dose of Vitamin D once a week is less effective than taking a smaller dose daily. Consistency is key to maintaining stable blood levels. Set a reminder on your phone or incorporate it into your daily routine.

Beyond supplementation, optimize your indoor light exposure. While indoor light isn’t as effective as sunlight, it can still provide some benefit. Position your desk near a window and try to spend at least 30 minutes a day in natural light, even if it’s overcast.

Consider investing in a light therapy lamp. These lamps emit bright, full-spectrum light that can help boost Vitamin D production and improve mood. Use them for 20-30 minutes each morning, especially during the darkest months.

Dietary strategies also play a role. While food sources of Vitamin D are limited, incorporating them into your diet can help. Fatty fish like salmon, tuna, and mackerel are good sources. Fortified foods like milk, yogurt, and orange juice can also contribute.

However, relying solely on food is often insufficient, especially for those with higher melanin levels. Supplementation is usually necessary to achieve optimal Vitamin D levels.

Let’s talk about culturally relevant dietary strategies. Many traditional African American dishes incorporate ingredients that are naturally rich in Vitamin D or can be easily fortified. For example, collard greens can be cooked with fortified broth, and cornbread can be made with fortified cornmeal.

Here’s a practical tip: add a tablespoon of cod liver oil to your morning smoothie. It’s a potent source of Vitamin D and omega-3 fatty acids. The taste might take some getting used to, but the health benefits are worth it.

Another challenge is the misconception that Vitamin D deficiency is only a concern during winter. While the risk is higher during the colder months, deficiency can occur year-round, especially for those who spend most of their time indoors.

Don’t assume that you’re getting enough Vitamin D just because it’s summer. Continue to monitor your symptoms and consider supplementation, especially if you have risk factors.

Here’s a step-by-step guide for Midwesterners to maintain healthy Vitamin D levels:

  • Get tested annually, preferably in the fall before winter sets in.
  • Consult with your doctor to determine the appropriate Vitamin D dosage.
  • Choose a high-quality Vitamin D3 supplement from a reputable brand.
  • Take your supplement consistently, preferably daily.
  • Optimize your indoor light exposure by spending time near windows or using a light therapy lamp.
  • Incorporate Vitamin D-rich foods into your diet.
  • Monitor your symptoms and adjust your strategy as needed.

Living in Columbus, Ohio, presents unique challenges. The city’s often overcast skies and limited sunlight hours make it difficult to maintain adequate Vitamin D levels naturally. Be proactive and take steps to protect your health.

Remember, Vitamin D deficiency is a serious health concern, especially for Midwesterners with higher melanin levels. Don’t ignore the symptoms. Take control of your health and ensure you’re getting enough Vitamin D to thrive, even during the darkest months. It’s not just about surviving winter; it’s about living well.

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