You’ve heard “you are what you eat.” But did you know certain foods can actually make you look younger? True. They do so by increasing the production of collagen. And it’s collagen that keeps the skin strong and smooth.

Here’s a quick lesson in collagen. Collagen is a protein and is responsible for the skin’s elasticity and strength. When collagen breaks down, skin becomes thinner and fine lines and wrinkles develop. As we age, collagen production declines, the skin weakens and we start looking older.

Many skincare products boast collagen as a primary ingredient. But often the collagen molecules are too large to get inside the skin. Consequently, these creams and lotions are ineffective. Rather than applying collagen, why not eat it? That’s right. Feed your face with foods that boost collagen production. Get ready to make out your grocery list.

Among the best sources of collagen are soy products; dark green vegetables such as kale, spinach, collards and asparagus; red, yellow and orange fruits and vegetables, water-rich vegetables like cucumber and celery; cold-water fish including salmon and tuna; nuts such as cashews, pecans, almonds and olives.

So, don’t be obsessed with putting collagen on your face. Instead focus on what collagen-producing foods you feed your face!