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Writer's pictureLaila Charlesworth

Why You Should Boost Your Vitamin D Levels this October

As the leaves turn red and the days grow shorter, many of us start to feel the effects of less sunlight. With the shift into autumn, one of the most important things to consider is your vitamin D levels. By October, the sun's rays are weaker, especially in northern regions, meaning we get less exposure to the UVB rays that our skin needs to produce vitamin D naturally.

This "sunshine vitamin" is essential for numerous bodily functions. It's critical for bone health, supports your immune system, helps regulate mood, and even contributes to heart health. Yet, many of us aren't getting enough—especially during the darker months.


Why is Vitamin D Important?

Vitamin D helps your body to absorb calcium, making it crucial for strong bones and teeth. Without adequate vitamin D, children may develop rickets (a condition where bones become soft and weak), and adults may face osteomalacia or even osteoporosis.


However, vitamin D goes beyond just bone health. It plays an important role in modulating the immune system, reducing inflammation, and improving your mood. Research suggests that low levels of vitamin D are linked to increased rates of colds, flu, and even depression, sometimes referred to as "seasonal affective disorder".


Vitamin D, Inflammation, and Autoimmune Health

Vitamin D is particularly important for individuals dealing with chronic inflammatory conditions. For example, psoriasis—a common autoimmune disease—has been linked to inflammation and immune dysfunction. Vitamin D helps modulate the immune system, reducing the pro-inflammatory cytokines that drive chronic conditions like psoriasis.


In addition, low vitamin D levels can worsen gut health, leading to issues like increased intestinal permeability, (when the lining of the intestine becomes more porous than normal, allowing larger particles like toxins, bacteria, and undigested food to pass into the bloodstream), which further contributes to autoimmune diseases. By ensuring adequate vitamin D intake, you help maintain the integrity of the gut lining and support overall immune health, reducing the likelihood of inflammatory flare-ups.


Vitamin D and Immune Health

In addition to supporting bone and autoimmune health, vitamin D plays a key role in regulating the immune system. It can reduce inflammation, which is often triggered by immune cells that reside in the gut, skin, and bones. When these cells release histamine, it can lead to a cascade of inflammatory responses. Vitamin D helps modulate this response, potentially reducing the overall burden of inflammation in the body.


If you're experiencing issues like fatigue, gut discomfort, or seasonal colds, it might not just be the changing weather—you could be low on vitamin D, which is essential for keeping your immune system in check.


The Risk of Low Vitamin D in Autumn and Winter

From October to April, depending on where you live, the sunlight simply isn’t strong enough for your body to produce vitamin D. That’s why many people become deficient during this time, particularly those who:


  • Spend most of their time indoors

  • Live in northern climates where sunlight is limited

  • Have darker skin, as higher levels of melanin reduce the skin's ability to produce vitamin D

  • Are older, as the skin becomes less efficient at producing vitamin D with age


If you're feeling more fatigued than usual, catching more colds, or noticing a dip in your mood, it could be worth checking your vitamin D levels.


How Can You Increase Your Vitamin D Intake?

Here are some effective ways to ensure you're getting enough vitamin D, especially during the fall and winter months:


  1. Food sources: Include vitamin D-rich foods in your diet, like fatty fish (salmon, mackerel, sardines), fortified foods (cereal, milk, and plant-based alternatives), egg yolks, and liver.

  2. Supplements: For many people, food sources alone aren’t enough. In autumn and winter, a vitamin D supplement is often necessary to maintain optimal levels. Most health authorities recommend around 400-800 IU per day, but the right dose for you depends on your current levels and individual needs.

  3. Regular testing: Knowing your exact vitamin D levels can help you tailor your intake. Taking too little won't help you, but too much can also be harmful. That’s why it’s crucial to test your vitamin D levels regularly and get personalised advice.



Introducing My "Sunshine in a Bottle" Service

Are you curious about your vitamin D levels? With my new Sunshine in a Bottle service, you can take the guesswork out of how much vitamin D your body really needs.


For £99, you will receive:


  1. A home test kit: I’ll send you an easy-to-use vitamin D test kit that you can complete from the comfort of your home.

  2. A personalised assessment: Once we have your results, I will provide a detailed report and a customized vitamin D plan based on your specific needs, whether you're maintaining optimal levels or correcting a deficiency.


Don’t let the lack of sunlight affect your health this autumn. For just £99, with Sunshine in a Bottle, you can stay at your best all year long.

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