Nutraceuticals combine "nutrition" and "pharmaceutical," meaning they are foods or parts of foods that play an important role in keeping the body healthy. The nutraceutical market is growing worldwide because of changes in health trends and population growth. These foods include things like dietarydietry fiber, prebiotics, probiotics, healthy fats, antioxidants, and natural or herbal foods. Nutraceuticals help fight common health problems like obesity, heart disease, cancer, osteoporosis, arthritis, diabetes, and high cholesterol. Overall, nutraceuticals have brought a new way of thinking about medicine and health, where the food industry focuses more on research to improve health.