Excess sugar molecules bind with proteins and begin a process that can alter skin collagen when people consume more sugar than their cells can synthesize (the protein that keeps the skin elastic and youthful). Sugar also harms teeth, producing decay and discolouration. “When your liver is working properly, toxins that could harm your skin are naturally eliminated through your body.” “However, if toxins accumulate in your liver and aren’t adequately broken down, your skin might develop a range of problems, including acne, sallowness, and wrinkles,” explains Dr. Ostad. Because alcohol dehydrates you, it is also detrimental for your sleep. “A lack of sleep has been related to wrinkles, uneven pigmentation, and decreased skin suppleness.” According to Ostad, black chars on grilled meat contain pro-inflammatory hydrocarbons, which might harm your skin’s collagen. You don’t have to avoid barbecuing entirely, but you should scrape off the black chars and clean the grill afterward. White wine can discolor your teeth and harm your enamel. Here’s what you shouldn’t do: After drinking white wine, wash your teeth right away (or any other acidic drink). Brushing your teeth when they are already acidic promotes enamel degradation. “After drinking an acidic beverage, you need to give your teeth time to re-mineralize,” says Maureen McAndrew of the New York University School of Dentistry.