What you eat has a huge influence on your mood and mental disposition overall. Having a sustained amount of energy throughout the day is a telltale sign that your diet is working well. Healthy hair is a great indication of a healthy diet and lifestyle. If your hair is healthy, that means your body is being supported and nourished. Dull, dry, and lifeless skin can be an indicator of internal problems like a clogged liver. Constant breakage and lack of growth is a sign to get more of these vitamins into your daily food intake. Be sure to consume plenty of antioxidants, micronutrients, and anti-inflammatory foods and liquids.