What is Vitamin D3? Known as the ‘sunshine vitamin’, vitamin D is essential in supporting your immune system, and maintaining healthy muscles, bones and teeth. It is synthesised in the skin via exposure to sunlight, but in the UK, one in five of us has low levels. In fact, Public Health England recommends that a 10 microgram vitamin D supplement should be taken daily by all. Why is ours better? Our super strength vitamin D3 supplement contains 25 micrograms, above the level suggested by Public Health England. This formulation uses a plant-based form of vitamin D. Healthspan’s vegan vitamin D3 capsules are produced from photosynthesising algae, making it ideal for anyone following a vegan or plant-based diet. It’s chemically identical to animal-origin D3, meaning it provides the same great benefits to your health, immunity and wellbeing.