Vitamin D

Why You Should Take a Vitamin D Supplement in Winter

As the darker months set in, one of the simplest ways to support your health is by taking a vitamin D supplement.

What is Vitamin D?

Vitamin D is often called the “sunshine vitamin” because our bodies produce it when skin is exposed to sunlight. It plays a vital role in regulating calcium and phosphate — nutrients essential for:

• Healthy bones and teeth

• Muscle strength

• Normal immune system function

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Why Supplement in Winter?

In the UK, from October to early March, the sun isn’t strong enough for us to make adequate vitamin D naturally. Even if you spend time outdoors, you won’t get the UVB rays needed for production.

That’s why deficiency is more common in winter, often leading to:

• Tiredness

• Low mood

• Muscle aches

• Slower recovery from illness

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NHS Guidance

The NHS recommends:

• Everyone over the age of 4 should consider a daily supplement of 10 micrograms (400 IU) of vitamin D during autumn and winter.

• People who spend little time outdoors, cover their skin, or have darker skin may benefit from supplements year-round.

• Supplements are especially important for older adults, pregnant or breastfeeding women, and children under 5 (with specific dosages).

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Benefits of Taking Vitamin D

• Supports healthy bones, muscles, and teeth

• Boosts immune function (especially useful during cold and flu season)

• May help regulate mood and support mental wellbeing in darker months