Vitamin D

Vitamin D is a fat-soluble vitamin that performs several essential functions throughout the body.

The body can produce Vitamin D when skin is exposed to sufficient sunlight.

In the UK, sunlight during autumn and winter is generally insufficient for the body to produce adequate Vitamin D, which is why Vitamin D supplementation is commonly recommended during these months.

IMMUNE FUNCTION

Vitamin D contributes to the normal functioning of the immune system.

Vitamin D receptors are found on numerous immune cells, reflecting its important role within normal immune physiology.

BONES & TEETH

Vitamin D contributes to maintaining normal bones and teeth.

One of its most important functions is helping the body absorb and utilise calcium and phosphorus.

CALCIUM ABSORPTION

Vitamin D contributes to normal absorption and utilisation of calcium and phosphorus and helps maintain normal blood calcium concentrations.

This relationship is particularly important for long-term bone health.

MUSCLE FUNCTION

Vitamin D contributes to the maintenance of normal muscle function.

Low Vitamin D levels can sometimes be associated with muscle weakness or musculoskeletal symptoms.

Who may be suitable?

  • Low or deficient Vitamin D levels

  • Limited exposure to sunlight

  • People who spend much of their time indoors

  • Those who cover most of their skin outdoors

  • People with darker skin who may be at greater risk of deficiency

  • Certain conditions affecting Vitamin D absorption

  • Those advised to supplement following appropriate assessment

Who is at greater risk of low Vitamin D?

Risk can be greater in people who:

  • Spend limited time outdoors

  • Cover most of their skin when outdoors

  • Have darker skin

  • Have certain absorption problems#

  • Have limited dietary Vitamin D intake

  • Spend much of the year with little sunlight exposure

Because Vitamin D is fat-soluble and can accumulate within the body, excessive dosing can be harmful.

Vitamin D treatment should therefore be appropriate to the individual and, when clinically indicated, guided by blood results and professional advice.

VITAMIN D LEVELS IN THE UK

In the UK, a blood level of 25-hydroxyvitamin D below 25 nmol/L is generally classified as Vitamin D deficient. Levels between 25–50 nmol/L are considered insufficient or potentially inadequate, while levels above 50 nmol/L are generally regarded as sufficient.

Contact Revitalize to arrange your consultation.

All treatments are subject to consultation and individual suitability. Prescription-only treatments are provided only following appropriate clinical assessment and a valid individual prescription. Revitalize services are not a substitute for diagnosis or treatment from your GP or other healthcare professional.