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Doctor says ‘sugar is your skin’s worst enemy’: Here’s what it does to your face over time

Updated on: Jun 2, 2025, 07:10:07 IST
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How high sugar intake damages collagen and elastin, ageing your skin. (Freepik)
How high sugar intake damages collagen and elastin, ageing your skin. (Freepik)

Doctor Astha Jani reveals how excess sugar harms your skin by damaging collagen and causing inflammation, leading to premature ageing and wrinkles. 

We all love our sweet treats, but too much sugar can take a toll on more than just your waistline. It can actually affect how your skin ages. Dr Astha Jani, a Maxillofacial and Cosmetic Surgeon, often shares insights related to health and wellness with her Insta family. In her April 28 post, she reveals how excess sugar ages your skin. (Also read: Doctor says your cramps and migraines are not really random: 'They could be signs your body is low on...' )

"Excess sugar in your diet triggers a process called glycation, where sugar molecules stick to collagen and elastin proteins, making your skin stiff, dull, and prone to wrinkles. Sweet today, saggy tomorrow!" Dr Astha wrote in the caption. She went on to explain in the post exactly how sugar impacts your skin health.

Understanding glycation: A hidden skin aggressor

When you consume excess sugar, it binds to proteins like collagen and elastin through a process called glycation. This weakens these essential proteins, leaving your skin stiff, fragile, and more prone to wrinkles.

How sugar affects collagen and elastin

Glycation damages collagen (which maintains firmness) and elastin (which provides elasticity). The result is sagging skin, dullness, and deeper wrinkles.

Role of inflammation in skin ageing

High sugar intake promotes inflammation, which accelerates skin ageing and contributes to redness, breakouts, and uneven tone.

Sugar and sensitivity to sun damage

A sugar-rich diet can increase your skin's vulnerability to UV rays, resulting in pigmentation, dark spots, and loss of natural glow.

Steps to protect your skin

  • Eat antioxidant-rich foods (berries, nuts, greens)
  • Drink plenty of water
  • Use sunscreen regularly
  • Replace refined sugar with complex carbohydrates

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.

  • Akanksha Agnihotri
    ABOUT THE AUTHOR
    Akanksha Agnihotri

    Akanksha Agnihotri is a lifestyle journalist with over 3 years of experience. She is a psychology graduate and holds a postgraduate diploma in Radio and Television Journalism from the Indian Institute of Mass Communication, Delhi, where she graduated as a gold medalist. Originally from Bhopal, the beautiful capital of Madhya Pradesh, she draws inspiration from the city’s rich cultural heritage and layered storytelling traditions that subtly shape her narrative voice. She writes extensively about fashion, beauty, health, relationships, culture, and food, exploring everything from trending styles and runway moments to wellness routines and mindful living. Passionate about meaningful and candid conversations, she enjoys interviewing celebrities, doctors, designers, and film personalities, diving into discussions on fitness, beauty, mental health, and everything fun in between. With a keen eye for trends and a thoughtful understanding of human behaviour, she brings depth, sensitivity, and authenticity to her stories, ensuring they resonate with a wide and diverse audience. When she’s not working, you’ll usually find her lost in a book, planning her next mountain trek, or mapping out spontaneous travel escapes. She loves discovering new authors, revisiting old favourites, and spending quiet afternoons in museums soaking in art, history, and culture. An avid bird-watching enthusiast, she finds joy in early morning walks, spotting rare birds, and reconnecting with nature. Whether sipping coffee while journaling her thoughts or exploring hidden corners of a new city, she constantly seeks inspiration in everyday moments that often turn into compelling story ideas.Read More

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