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    15 Retinol-Rich Foods to Stimulate Collagen and Your Immune System

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    Photographed by Dischinger Francois, Vogue, November 2004

    Anybody who is serious about anti-aging is using retinol in their beauty routine. The ingredient, which is a derivative of vitamin A, is considered the gold-star anti-aging ingredient when it comes to skin health. Vitamin A—whether it’s in the form of retinol or one of the other retinoids, like retinoic acid or retinyl palmitate—has been clinically proven to smooth lines, clear acne, and reverse sun damage because it supports cellular turnover.

    But vitamin A doesn’t just come in a tube. There are plenty of foods that are rich in vitamin A, which is almost totally bioavailable and benefits more than just your skin. Eating a diet rich in vitamin A helps to support healthy immune and reproductive systems; when you’re applying it topically, it’s solely focused on dermal cellular turnover.

    “Diet plays a significant role in our skin’s health and appearance,” says Manhattan-based board-certified dermatologist Dendy Engelman, MD, FAAD. “There are studies to support that increased vitamin intake helps skin in both the aging space and acne.”

    Here’s how you can take advantage of vitamin A in your diet to improve your skin, immune system, and more.

    Benefits of Vitamin A

    Vitamin A is a fat-soluble vitamin (more on that later) that is key for a healthy body. “The human body does not produce vitamin A, so it must be obtained externally through our diet and skin care,” Dr. Engelman says. “Retinol, like other retinoids, is a derivative of vitamin A. When applied topically to the skin, it is converted to retinoic acid, the active form of vitamin A in the body.”

    A Warning About Vitamin A–Rich Foods

    “It’s important to note that consuming too much vitamin A can actually be very toxic for the human body, leading to a condition known as hypervitaminosis A,” Dr. Engelman points out. “This can result in a number of unwanted and potentially dangerous side effects—including, ironically, a disrupted and unhealthy skin barrier, and hair loss. Therefore, it is very important to avoid excessive consumption of vitamin A—or any compound!—and speak with your doctor to determine the diet that’s best for you.”

    15 Vitamin A–Rich Foods

     

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