Indications Vitamin D3 1000 is a high strength vitamin D3 supplement, providing the bioactive form of vitamin D, cholecalciferol, that is formed naturally in the body. Vitamin D3 1000 and has been designed to assist with deficiencies of vitamin D and the maintenance and improvement of general well-being. In Australia and New Zealand, the prevalence of vitamin D deficiency varies, but is acknowledged to be much higher than previously thought in part due to inadequate sun exposure, lifestyle and diet. Aging also decreases the skin's ability to produce vitamin D. Vitamin D3 helps to build and maintain muscle strength, which may help to reduce the risk of falls in the elderly. Vitamin D3 assists in building and maintaining healthy bones and teeth. Vitamin D3 promotes the absorption of calcium, which is important as a diet deficient in calcium can lead to osteoporosis in later life. Vitamin D3 may assist in maintaining healthy skin and a healthy immune system. Vitamin D3 1000 may assist in the maintenance or improvement of general well-being. Vitamin supplements should not replace a balanced diet.