Sugar and your skin
Research has found that diets high in sugar may not be so sweet for your skin, causing wrinkles, sagging and possibly even acne. Sugar can trigger a process known as glycation — meaning that sugars in the bloodstream can attach to protein and create a by-product that damages collagen and elastin, leading to connective tissue damage in your skin. Glycation can also discolor your skin, making it look sallow or yellowish, and leave your skin more susceptible to sun damage.
If that’s not bad enough, there is also some evidence that high sugar diets can worsen acne. Sugar triggers a rush of insulin and hormones, which some scientists suspect can stimulate oil production and inflame the skin.Column: Top 10 Sugar Foods (and Secret Sugar Foods)
Luckily, there are some ways that you can reverse or prevent some of the damage from your daily dessert habit!