We recently talked about the importance of a healthy diet when it comes to your skin looking its best. The food we eat has a big effect on our skin’s appearance, so it’s key to know what’s good and what’s bad. Now that we’ve put together a list of what’s healthy, we wanted to share what might be harmful:

1) Sugar:

Blood sugar spikes are tough for your skin to handle. After eating sugar, your body converts it to glucose. The glucose then damages healthy collagen and elastin when it binds to them. To keep your skin looking full and glowing, focus on foods that are low on the Glycemic index.

2) Margarine:

Your skin needs fat to look its best, but not all fats are created equal. While we’ve praised the virtues of olive oil, its similarly fatty counterpart, margarine, doesn’t have the same healthy effect. Instead of healthy monounsaturated fat, margarine is often loaded with trans fats, which can hamper hydration and leave your skin looking wrinkled.

3) Too Much Milk:

Though the calcium in milk can be great for your bones, the hormones it contains may harm your skin. Even after pasteurization, there are still active hormones in milk. Once ingested, they ramp up oil production and can lead to inflammation, leaving you with discolored and acne-prone skin.

4) Juice:

Most store bought juices barely have any real fruit juice in it – it’s all sugar. On top of that, most juice is strained so that the fiber is removed. Fiber plays a key role in preventing blood sugar spikes. Blood sugar spikes can increase your prominence of crow’s feet down the line, so these store bought juices are not doing your skin much justice.

5) Corn-Fed Meat:

Unlike animals that ate corn, animals that grazed in a pasture will make for a cleaner meat for your skin. Plus, increasing the amount of fish you’re eating in replacement of corn-fed meats (within moderation, of course), you’ll also be increasing the amount of healthy omega-3 fatty acids in your diet.