When the days get shorter and colder, some people struggle to get enough vitamin D.
This vital nutrient plays a key role in bone strength, immunity, and energy. Here are some actionable tips to help you maintain healthy levels.
Use sunlight as your natural source

Sunlight is the most effective way for your body to produce vitamin D. Even a few minutes outdoors can give your system a boost.
Pay attention to skin tone

People with darker skin need more sun exposure to make the same amount of vitamin D compared to lighter skin tones due to higher melanin levels.
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Factor in your age

As you grow older, your body becomes less efficient at producing and metabolizing vitamin D through the skin, making dietary sources even more important.
Consider your geography

Living closer to the equator means year-round sun exposure, but in northern regions, winter sunlight may not be strong enough for sufficient vitamin D production.
Balance sunscreen use

While sunscreen is essential for skin protection, it can reduce vitamin D synthesis. A few minutes of unprotected sun exposure may be beneficial.
Eat fatty fish

Fish like salmon, mackerel, and tuna are among the richest natural sources of vitamin D and can provide a large part of your daily needs.
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Add shellfish to your meals

Oysters, shrimp, sardines, and anchovies also deliver vitamin D while offering additional minerals like zinc and iron.
Include mushrooms in your diet

Mushrooms are the only plant-based food that naturally contains vitamin D.
Choose UV-treated mushrooms

UV-exposed mushrooms have higher vitamin D content and can meet your weekly requirements when eaten regularly.
Don’t skip egg yolks

Eggs are an easy, versatile food that contributes modest amounts of vitamin D as part of a balanced diet.
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Look for fortified foods

Because few foods naturally contain vitamin D, many products such as milk, plant-based alternatives, cereals, and yogurt are fortified.
Check the label

Always read the ingredients list to see if a product is fortified with vitamin D, as this varies by country and brand.
Consider supplements

For many people, especially in winter, a vitamin D supplement is the most reliable way to reach the recommended daily intake.
Understand D2 vs. D3

Vitamin D3 (from animal sources) is more effective at raising blood levels than D2 (from plants), making it the preferred option.
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Choose tested products

Since supplements are not always strictly regulated, look for brands that are third-party tested for purity and potency.
Stick to the right dosage

Most healthy adults need 1,500–2,000 IU per day, but the exact amount should be guided by blood test results and medical advice.
Adjust for special needs

If your levels are very low or you rarely get sunlight, you may require higher doses under medical supervision.
Explore vegan options

Plant-derived D2 supplements are vegan-friendly, while specialty vegan D3 made from lichen is also available.
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Try a UV lamp with caution

UV lamps mimic the sun and can stimulate vitamin D production, but they must be used carefully to avoid skin damage.
Consult a healthcare professional

Before starting supplements or using UV lamps, get your vitamin D levels tested and discuss the best approach with your doctor.
Artiklen er baseret på informationer fra Healthline.com.