Herbs of Gold Vitamin D 1000 contains a vegan-friendly vitamin D derived from lichen to support absorption of dietary calcium. Vitamin D helps calcium absorption and a diet deficient in calcium can lead to osteoporosis in later life. • Vitamin D3 1000 supports bone strength, density and health in post-menopausal women. • Vitamin D3 1000 maintains healthy teeth, muscle strength and immune system function. • Vitamin D3 1000 supports healthy pregnancy and healthy foetal development. Supplementing vitamin D during breastfeeding can be useful to increase an infant's vitamin D status.