Nutrient density means that the calories you consume are full of nutritional benefits that build your health. There is added value. Empty calories are when the food tears down your health or provides zero benefit.
As the temperature drops in much of the US, flu season is upon us. The Centers for Disease Control and Prevention estimates that the flu causes between 9 and 40 million illnesses every year. Strengthening your immune system is key to making it through the winter without being knocked out by a horrible bout of flu or other winter illnesses such as colds, bronchitis, pneumonia, and strep throat.