Long known as an essential bone-building nutrient, vitamin D3 also plays a role in regulating our immune and neuromuscular systems, as well as modulating our mood and sleep rhythms.* Yet many people—whether because we routinely wear sunblock, spend time indoors, have darker skin, or live in northern locales—are deficient in vitamin D. Our Vitamin D3 Gummies for adults are a delicious, convenient way to get your expert-recommended daily vitamin D3—the form of vitamin D your body naturally makes from sunlight.