Your diet plays an intrinsic role in keeping your body healthy. When your diet is unhealthy, lacking in vitamins, nutrients, and minerals or full of saturated fat, sugar, or alcohol, your body can experience a variety of maladies and health issues. Unhealthy eating is one factor in your health that you have control over and should take every opportunity to correct so that you do not experience of its unfortunate side effects.
Fast food is convenient, especially for people who work long hours behind desks and don't spend a lot of time in their kitchens. Unfortunately, many fast-food options and prepared foods are high in calories and full of saturated and trans fats, which contribute to a higher body mass. Poor diet choices and lack of exercise can lead to obesity, a weight level that predisposes you to an array of diseases, such as type-2 diabetes, high blood sugar, heart disease, kidney failure, and circulatory problems. Every system in your body has to work harder to perform its functions when you are obese, putting stress on main organs such as the heart, kidney, and liver.
Just as giving your body too much food can cause problems, giving your body too little food can also create health issues. Because your body continues to burn calories even if you are not putting adequate calories into it, it begins to take chemicals that it needs for sustenance from your organs. This can cause osteoporosis from weakening of the bones because of calcium being leached from them to fill a deficiency from diet. It can also cause depression and mood disorders from a lack of nutrients reaching the brain, causing an inability to self-regulate brain chemistry. If the lack of nutrition persists for a long time, it can result in the shutting down of system functions and finally, death.
While too much food can cause obesity and too little can result in starvation, too much or too little of the wrong foods can also create unpleasant health effects on your body. A lack of iodine in your body can create hypothyroidism and swelling of the thyroid gland, called goitre. Too much beta carotene in your body can literally turn your skin orange. Too much heavy metal in your diet, such as iron, gold, and borium can cause your liver to fail, while a lack of vitamin C can leave you with a condition commonly referred to as scurvy. It is important to eat a balanced diet and stick to the recommended servings.