The primary nutrient found in dairy products is calcium, which is essential for building and maintaining strong bones and teeth. Dairy foods such as milk, cheese, and yogurt are rich sources of calcium, making them important for bone health, especially in growing children and older adults. Additionally, dairy products contain other vital nutrients, including protein, vitamin D, and phosphorus. While some people may be lactose intolerant and cannot digest lactose found in milk, there are lactose-free options available that still provide the same benefits without the discomfort.