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Experts Reveal the One Supplement You Should Take This Winter
10 Nov, 2025
Summary
- Vitamin D is crucial for immune function, bone health, and mood
- Deficiency is common in the UK due to limited sunlight exposure
- Proper dosage is critical to avoid toxicity
As of 2025-11-10T12:45:22+00:00, experts are strongly recommending that people in the UK take vitamin D supplements, especially during the winter months. Vitamin D is not technically a vitamin, but rather a hormone that our bodies produce in response to sun exposure. However, with shorter daylight hours and increased cloud cover, many people in the UK are not getting enough vitamin D from natural sunlight.
Vitamin D plays a crucial role in regulating calcium and phosphate levels, keeping bones, teeth, and muscles healthy. It also supports immune function and can impact mood, with low levels linked to conditions like seasonal affective disorder (SAD). Certain groups, such as the elderly, those with darker skin tones, and individuals with hormonal conditions like PCOS, are at an even higher risk of vitamin D deficiency.
While some vitamin D can be obtained through diet, experts say this is not enough to maintain optimal levels, especially during the winter. Taking a vitamin D supplement is the best way to ensure you're getting sufficient amounts. However, the dosage is important, as it is possible to take too much vitamin D, which can lead to adverse effects. Consulting with a healthcare provider to determine the right supplement and dosage is recommended.
