yes because supplements are meant to provide nutrients they are not complete food sources. Athletes with poor nutritional habits will not reach full potential. Adequate nutrients are important for tissue growth and repair which is required for athletes to have full recovery between practices and competitions.
Food=Comfert. After teen experience losses, pain, or other sadness, turning to dramatic yet tasty foods is likely.
An author's credentials can determine a health source's credibility. None of the other options would apply to credibility. When it comes to health, if you want to make sure that what you are researching or reading is authentic and reliable you need to find out whether the author is a professional health expert or not. You can do this by finding out their credentials.