Ovaltine nutrition varies by product and preparation, but a typical serving (often with water) is relatively low in calories, fat, and protein, while being higher in carbohydrates and sugars. For example, a serving of Ovaltine Original can have around 103 calories, 17g carbohydrates, and 8.9g sugar when mixed with water. The powder itself is often fortified with vitamins and minerals, such as iron, calcium, and vitamin D, which become more significant when mixed with milk.