In this guide
For information only. Products do not replace diagnosis, treatment or a varied diet. Seek professional advice for symptoms, pregnancy and use by children.
Vitamin D helps the body use calcium and matters for bones and muscles. We get it from sun, food and supplements. This text is general information and does not replace medical advice.
Sources
Skin makes vitamin D in sunlight, but in winter the sun is often too weak. Food contains little: fatty fish, egg yolk and fortified products. NIH ODS notes that fatty fish is the best natural source.
How to plan your intake
- Spend short periods outdoors several times a week, without burning.
- Include fatty fish, eggs and fortified foods.
- If you get little sun, talk to a doctor or pharmacist about a supplement.
- Add up vitamin D from multivitamins and other supplements.
- Do not exceed 100 mcg (4,000 IU) a day from all sources without medical supervision.
Who benefits most from a supplement
The NHS in the UK advises 10 mcg a day in autumn and winter, and all year for people who are rarely outdoors or have darker skin. Where you live, ask your doctor about your own needs.
Caution
Take high doses only on a doctor's advice. Vitamin D can interact with some medicines, such as statins, steroids, orlistat or thiazide diuretics, so mention them to your doctor or pharmacist. Write down which supplement you take and at what dose, so you can show it at your next appointment. A doctor assesses the blood level.
An example to compare
You can compare Forever Absorbent D with other vitamin D supplements by the amount per dose and the manufacturer's directions.
Common questions
Do I need a vitamin D supplement in winter?
It depends on sun exposure, diet and health. Talk to a doctor or pharmacist.
Can I take more than 4,000 IU a day?
Not without medical supervision. It is the upper limit for adults from all sources.
