ESTHELIV Vitamin D3 50mcg (2,000 IU) – Soft Capsules

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Vitamin D3 (cholecalciferol) at 50mcg — 2,000 IU — in soft capsules.

What it is

Vitamin D is the one nutrient the UK genuinely has a national shortfall in, because between October and March the sunlight at this latitude isn't strong enough for skin to make it, whatever the weather does. The government advises everyone to consider a supplement through those months. Very little food contains it — oily fish and egg yolks, and not much else — so diet alone rarely closes the gap.

The authorised claims are unusually broad. Vitamin D contributes to the normal absorption and utilisation of calcium and phosphorus, to normal blood calcium levels, to the maintenance of normal bones and teeth, to the maintenance of normal muscle function, and to the normal function of the immune system. The calcium point is the one people miss: dietary calcium isn't much use without vitamin D to absorb it, which is why calcium supplements alone often disappoint.

This is D3 rather than D2 — the form skin produces — at 50mcg, which is five times the 10mcg daily amount UK guidance suggests and well within the 100mcg upper limit for adults.

How to use

Take one soft capsule daily with water, preferably with a meal containing some fat, since vitamin D is fat-soluble.

Who it is for

For adults who spend most of the day indoors, live at northern latitudes, cover their skin, or have darker skin — melanin reduces vitamin D synthesis, so the shortfall tends to be larger. Also relevant after the menopause and in later life, when synthesis becomes less efficient.

Before you buy: at 50mcg this is a higher-strength product. Don't take it alongside a multivitamin or cod liver oil without checking the combined total — vitamin D is stored in the body and, unlike the B vitamins, excess is not simply passed out. Speak to your GP first if you have kidney problems, sarcoidosis, high blood calcium, or take digoxin or thiazide diuretics. Consult a healthcare provider if pregnant, breastfeeding or taking any medication. Not suitable for children.

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Food supplement. Not a substitute for a varied, balanced diet and healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of children. Consult your doctor before use if you take any medication or are under medical supervision.