Vitamin D3 Tablets

Vitamin D tablets help maintain healthy bones, muscles and immunity by supporting calcium absorption, and by regulating calcium and phosphate balance in the body. Supplementing with vitamin D is especially important during autumn and winter, or for anyone who gets little sun exposure, as the body produces vitamin D naturally from sunlight.

Not exactly. “Vitamin D” refers to a group of related compounds, but vitamin D3 (cholecalciferol) is the most effective and biologically active form. It’s the same type your body produces when skin is exposed to sunlight and is generally better absorbed and utilised than D2 (ergocalciferol), which comes from plant sources.

Yes, daily supplementation is safe and effective for most people when taken at the recommended dose. Regular intake helps maintain steady blood levels of vitamin D, which supports bones, immunity and muscle function. Because the body stores vitamin D, consistency matters more than large occasional doses.

Vitamin D supports calcium absorption, keeping bones and teeth strong. It helps muscles function properly and contributes to balance and coordination. It also plays a crucial role in immune defence and supports cell growth and repair, making it essential for overall health at every age.

Low vitamin D levels can cause tiredness, low mood, muscle weakness, bone discomfort or more frequent infections. People often describe feeling run-down, sluggish or achy without realising their symptoms may be linked to deficiency. It can also cause skin itching and irritation, particularly at night. A simple blood test can confirm low vitamin D and guide appropriate supplementation.

Vitamin D is fat-soluble, so take it with a meal that contains some healthy fat for best absorption. Many people prefer taking it in the morning or at lunchtime as part of their daily routine. Some find it slightly energising, so taking it earlier in the day can help avoid any interference with sleep.

The richest natural sources of vitamin D are oily fish such as salmon, mackerel and sardines. Other sources include eggs, fortified cereals, plant milks and margarine. However, it’s difficult to get enough from food alone, which is why supplements are often recommended, especially in winter or for people who avoid animal products.

The best form of vitamin D for supplements is vitamin D3 (cholecalciferol), as it’s the same type your body naturally makes from sunlight and is more efficiently absorbed than vitamin D2 (ergocalciferol). Look for a product that provides 4,000 IU (100 µg) per day for strong support. For even better absorption, vitamin D3 is often paired with a small amount of healthy fat or oil (such as sunflower oil or flaxseed oil), since it’s fat-soluble. VitaBright vitamin D meets all these criteria, is made to exacting GMP standards, tested for purity, and provides a bioavailable form your body can use efficiently - ideal for supporting bones, muscles, immunity and wound healing.

VitaBright supplements are produced in state-of-the-art, BRC accredited grade AA, UK manufacturing facilities. We manufacture to GMP standards - the same as pharmaceutical medicines - which means our process involves batch testing, rigorous record-keeping, and inspections by the Medicines and Healthcare products Regulatory Agency (MHRA). We use only the finest ingredients sourced from leading global suppliers, double seal all bottles, and have ingredients independently tested for heavy metals to further guarantee our supplement quality or safety.