Vitamin D: Why it matters for your health

As the days grow shorter during the fall and winter months, many people experience reduced sunlight exposure, which is crucial for natural vitamin D synthesis. This lack of daylight can sometimes lead to seasonal mood changes, commonly known as Seasonal Affective Disorder (SAD) and vitamin D can play a supportive role during these seasonal shifts. Maintaining adequate levels might help alleviate mood fluctuations associated with reduced sunlight, potentially enhancing your overall well-being throughout the darker months. By being proactive about vitamin D intake, whether through diet, supplementation, or carefully managed sun exposure, you can better navigate the challenges of seasonal transitions. 

After struggling with my mood and emotions over the past two months, I realized something was off. The colder, darker days, combined with a personal loss and the emotional toll of global issues, left me feeling more down than I was comfortable with. From my last bloodwork, I also knew my vitamin D levels were slightly low, and I hadn't developed a consistent habit of taking my supplement.

Determined to improve how I felt, I decided to commit to taking my vitamin D supplement daily with breakfast (usually peanut butter toast) and track any changes in my mood. I'm happy to report that I noticed a positive shift quite quickly. I'm now in my third week of taking a daily vitamin D supplement, and my mood has improved significantly. While other factors might have played a role, I attribute this positive change largely to vitamin D. It’s essential for our health, and given my recent experience, I wanted to share just how important it can be for our well-being.

Let's explore why vitamin D is essential and how you can ensure you're getting enough..

Immune System Support

Vitamin D plays a crucial role in supporting the immune system. During the COVID-19 pandemic, studies suggested that adequate vitamin D levels might reduce the severity of respiratory illnesses. By promoting immune response, vitamin D can help protect against infections, making it a vital nutrient, especially during flu season.

Mental Health Benefits

Emerging research indicates a connection between vitamin D deficiency and mental health conditions like depression and anxiety. While it's not a cure-all, maintaining optimal vitamin D levels could be part of a holistic approach to mental wellness. If you're experiencing mood-related issues, consider discussing vitamin D with a healthcare professional as part of your strategy.

Beyond Bone Health

Traditionally, vitamin D is recognized for its role in bone health and preventing osteoporosis. But its impact reaches further, potentially influencing muscle function and reducing fall risk, particularly in older adults. Ensuring adequate intake can promote a healthy, active lifestyle as you age.

Finding the Right Balance

Amidst the interest in vitamin D, there is debate over the optimal dosage and safety of supplementation. While some advocate for higher doses, others caution against over-supplementing due to potential health risks. Balancing sun exposure and dietary intake with supplements, when necessary, can help you achieve optimal levels safely.

Dietary Sources of Vitamin D

With many seeking alternatives to supplements, incorporating natural sources of vitamin D into your diet is gaining popularity. Foods like fortified plant-based milks, mushrooms, and fatty fish are excellent choices. By diversifying your diet, you can help ensure your body gets what it needs naturally.

Vitamin D and Chronic Disease Prevention

The potential of vitamin D extends to reducing the risk of chronic diseases like cardiovascular diseases, certain cancers, and diabetes. While research is ongoing, maintaining healthy vitamin D levels could be a proactive step in your long-term health strategy.


Tips for Choosing Vitamin D Supplements

If you’re considering vitamin D supplements, here are some tips to keep in mind:

1. Consult with a Healthcare Provider: Before starting any supplementation, discuss with a healthcare professional to determine if you really need it and what dosage is appropriate for you. Additionally, if it's recommended to take vitamin D with other vitamins for extra benefits, make sure to consult your doctor to account for any medications you're currently taking.

2. Check Your Levels: A simple blood test can assess your vitamin D levels, helping tailor your supplementation needs more accurately.

3. Form Matters: Vitamin D3 is often recommended as it is more effective at raising and maintaining overall vitamin D levels compared to D2.

4. Monitor Your Intake: Stick to recommended dosages and keep track of your daily intake to avoid excessive consumption, which can lead to adverse effects.

5. Consider Timing: Taking your vitamin D supplement with a meal that contains fat may enhance absorption, as it is a fat-soluble vitamin.

6. Know the Source: Understanding the source of your vitamin D supplement is important for both quality and ethical considerations. Some supplements are derived from animal sources, while others are plant-based. Choosing a reputable brand ensures you're getting a product that's pure and free from unnecessary additives or contaminants.

By understanding the benefits and being mindful of your vitamin D intake, you can harness its power for your health effectively. Remember, a balanced approach that includes both diet and lifestyle choices can lead to the best outcomes.


Vitamin D is a cornerstone of good health, impacting everything from immunity to mental wellness and chronic disease prevention. By incorporating vitamin D-rich foods into your diet and considering responsible supplementation, you can support your body in a multitude of ways. Always consult with a health professional to create a plan that's tailored to your individual needs.

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Remember: this post is for informational purposes only and may not be the best fit for you and your personal situation. It shall not be construed as medical advice. The information and education provided here is not intended or implied to supplement or replace professional medical treatment, advice, and/or diagnosis. Always check with your own physician or medical professional before trying or implementing any information read here.


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