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Selenium, vitamin C and E, and beta carotene. For best results, you have to consume whole grains, nuts, wheat germ, vegetable oil, dark-colored fruits, and vegetables on a regular basis. Such a diet protects you from lung damage, and is good for smokers too. According to some studies, beta carotene is beneficial for protecting and strengthening the lungs; and this can Raw Nitro be found abundantly in mangoes, carrots, apricots, sweet potatoes, peppers, and cantaloupes. A balanced diet, along with regular exercises, are the basics of a healthy lifestyle. Recent studies have shown some alarming facts about physical fitness among today's teens. Most of them spend at least 30 hours in a week, just watching TV and eating high-fat content snacks. Nearly fifty percent of the teens and young adults, do not do any sort of physical activity on a regular basis. Teenage girls are more inactive than the boys. As teenagers grow up, many of them even tend to avoid participating in physical education class in their schools. Physical fitness for teenagers is important as it keeps their body free from illness. It enables the organs of the body, like the heart, lungs, and muscles, to function efficiently. Moreover, it makes the body more energetic, which in turn helps us to carry out our daily chores without getting fatigued. 

http://www.optimalnutritions.com/raw-nitro