Sugar causes inflammation and creates free radicals (oxygen molecules that can weaken proteins within the body) that attack our bodies on a cellular level. It does this by oxidizing fats and converting them into the chemical compound aldehyde. Sugar is bad for just about every system in the body including the immune system, the cardiovascular system, and especially the skin, due to it's ability to break down the lipid barriers of cells through oxidation. When in need of a sweetener instead of reaching for sugar try using an herbal sweetener like stevia instead. Stevia is 300x's sweeter than sugar and doesn't share sugars harmful side effects on the body.
2. REFINED FLOUR
Refined flours that are found in foods such as pasta and breads are full of high glycemic starches that mimic sugars. Whole grains on the other hand, are made up of bran and germ which contain fiber and nutritional phytochemicals. Fiber enables the body to absorb large amounts of water and help keep weight under control.
3. HYDROGENATED FATS
Hydrogenated fats aka trans-fatty acids, wreak havoc on the body by unleashing free radicals that can lead to heart disease and cancer. Hydrogenated fats are added to packaged goods and fast food products in order to extend their shelf life. Trans fats are not essential, and in no way promote good health. It's recommended that the intake of trans fatty acids be limited to trace amounts, found naturally in things like meats and dairy products.
4. ACID-FORMING FOODS
Keeping your body at the proper pH is something that is extremely important. Eating foods that are highly acidic can aggravate your skin and cause disturbances. Eat grains, fruits, and vegetables that are alkaline based and avoid over indulging in highly acidic foods such as coffee, alcohol, and processed foods. These types of food can cause your skin to become itchy and prone to rashes if consumed in high amounts.