£34.19
Pro D3 High Strength 20,000 IU Capsules provide a powerful dose of vitamin D3 to support bone, muscle, and immune health. Ideal for those with low vitamin D levels, they help maintain overall strength and wellbeing.
Pro D3 20,000 IU Capsules contain colecalciferol (vitamin D3), a high-strength vitamin D supplement designed to support normal immune, bone, muscle and calcium absorption functions. Vitamin D3 is naturally produced in the skin through sunlight exposure, but many people – especially during winter may not get enough.
These capsules are typically used when individuals have low vitamin D levels, limited sunlight exposure, or increased nutritional demands (under professional supervision).
More information about Vitamin D – https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-d/
Vitamin D deficiency occurs when the body does not receive or produce enough vitamin D.
Common causes include:
Limited outdoor activity or sun exposure
Wearing clothing that covers most of the skin
Darker skin tones
Winter months in the UK
Dietary insufficiency
Low vitamin D can affect calcium absorption, leading to poor bone and muscle health. Supplements may be recommended by healthcare professionals to restore and maintain adequate levels.
Vitamin D3 contributes to normal immune system function
Supports normal absorption and utilisation of calcium and phosphorus
Helps maintain normal bones and teeth
Supports normal muscle function
Contributes to the process of cell division
High-strength formulation suitable for short-term correction of low levels (under medical supervision)
Adults: Take one capsule daily with food and water, or as directed by a healthcare professional.
Swallow whole; do not chew.
Do not exceed the recommended intake.
Take the next capsule at the usual time – do not double up.
Seek medical advice immediately, as excessive vitamin D intake can cause elevated calcium levels.
Colecalciferol (vitamin D3): 20,000 IU (500 micrograms)
Capsule shell constituents (varies by formulation)
May include vegetable-source ingredients for vegan versions
Free from: artificial colours, flavours, gluten, lactose, and common allergens (depending on product variant).
High-dose vitamin D should be used under healthcare supervision.
Do not use if you have hypercalcaemia, hyperparathyroidism, kidney stones, or severe renal impairment unless instructed.
Avoid taking additional vitamin D supplements simultaneously unless advised.
Speak to a clinician if pregnant, breastfeeding, or planning pregnancy.
Keep out of sight and reach of children.
Consult a healthcare professional before use if you are taking:
Anti-epileptic medicines
Heart rate medications
Diuretics
Calcium supplements
Tuberculosis medicines
Antifungal treatments
Most people tolerate vitamin D well.
Possible side effects include:
Mild digestive discomfort
Headache
Allergic reactions (rare)
Symptoms of high calcium levels if taken excessively (thirst, weakness, nausea)
Stop use and seek advice if symptoms persist.
They provide high-strength vitamin D3 to support immunity, bone health, calcium absorption, and muscle function – typically when levels are low.
Usually one capsule daily, but dosing may vary depending on clinical advice.
Some variants are vegan-friendly. Check product packaging for confirmation.
Use only for the duration recommended by your healthcare professional or the patient information leaflet provided.
Avoid combining with other vitamin D or high calcium supplements unless supervised.
They may support vitamin D levels during periods of low sunlight, under professional guidance.
Pro D3 supplements are produced by Synergy Biologics Ltd, a UK manufacturer operating under strict quality standards.
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