Which Lifestyle Habits Can Destroy Collagen? Dermatologist Answers

We all are aware of how important collagen is when it comes to keeping our skin youthful. As we age, our collagen production starts diminishing. Apart from age, there are several everyday habits that actively destroy our collagen production. Some of these habits include unprotected sun exposure, smoking, excessive sugar consumption, chronic stress, and poor sleep. Today, this article will explain all you need to know about this.

To understand this better, we reached out to our experts, Dr Shitij Goel,  Senior Consultant, Dermatology, Shardacare-HealthCity and Dr Shireen Furtado, Senior Consultant, Medical and Cosmetic Dermatology, Aster CMI Hospital, Bangalore.

Which Lifestyle Habits Can Destroy Collagen?

Dr Furtado says that collagen is the main protein that keeps the skin firm, smooth, and elastic. The expert explains, “As people age, collagen production naturally decreases, but certain lifestyle habits can speed up its breakdown and lead to premature skin ageing.” On this note, the expert lists the habits for our better understanding: 

Ultraviolet (UV) Rays 

One of the biggest causes is excessive exposure to ultraviolet (UV) rays from the sun. UV radiation damages collagen fibres and reduces the skin's ability to produce new collagen, resulting in wrinkles, sagging, and uneven skin texture.

Smoking

Smoking is another major factor that destroys collagen. It reduces blood flow to the skin, increases harmful free radicals, and slows the production of new collagen. 

Bad Diet

Eating a diet high in sugar and processed foods may also damage collagen through a process called glycation, which makes collagen fibres stiff and weak. Drinking too much alcohol can dehydrate the skin and reduce its ability to repair itself.

Stress and Poor Sleep

Poor sleep and long-term stress can also affect collagen health. High levels of the stress hormone cortisol may reduce collagen production and slow skin healing. 

Poor Lifestyle

Lack of regular exercise, poor nutrition, and inadequate intake of protein, vitamin C, zinc, and other essential nutrients can further reduce the body's ability to make collagen.

Signs Your Collagen Levels Are Decreasing

According to the Cleveland Clinic, these are some of signs and symptoms which indicate that your collagen levels are declining:

• Your skin appears wrinkled, crepey or sagging.
• Hallowing in and around your eyes and face.
• Shrinking, weakening muscles and muscle aches.
• Stiffer, less flexible tendons and ligaments.
• Joint pain or osteoarthritis due to worn cartilage.
• Loss of mobility due to joint damage or stiffness.
• Gastrointestinal problems due to thinning of the lining of your digestive tract.
• Problems with blood flow.

A 2025 study, published in the Cosmetics journal, focuses on the connection between collagen and skin ageing. It mentions that as people grow older, their bodies naturally start to produce significantly less of the vital collagen, known as Type 1 collagen. Besides this decreased production, ageing also increases the activity of certain enzymes that leads to breaking down of the skin's existing collagen network. This nonstop structural damage and decline of type I collagen directly causes the deeper layers of the skin to thin out. 

Therefore, without enough healthy collagen fibres, the skin loses firmness and elasticity. Moreover, this internal collagen damage leads directly to the visible appearance of wrinkles and sagging skin. However, certain clinical studies have discovered that specific nutritional supplements can help prevent this collagen damage. For instance, consuming hydrolysed fish cartilage and low-molecular-weight peptides can effectively stimulate the body to produce new collagen.

Collagen-boosting Foods To Add in Your Diet

According to the Cleveland Clinic, these are the collagen boosting foods which you can add to your diet:

1. Bone broth: It draws collagen out of beef, chicken or fish bones. You can drink this flavorful liquid straight up.  

2. Foods rich in protein: When your body produces collagen, it combines amino acids. And you can get amino acids from protein-rich foods, such as:

• Beef.
• Chicken.
• Fish.
• Beans.
• Eggs.
• Dairy products (milk, cheese).

3. Foods rich in Vitamin C: Creating collagen naturally also require vitamin C. You can get vitamin C by eating fruits and vegetables such as:

• Citrus fruits (oranges, grapefruits).
• Red and green peppers.
• Tomatoes.
• Dark green, leafy vegetables (broccoli, kale, Brussels sprouts).

4. Foods rich in zinc and copper: You can get these minerals from foods such as:

• Meats.
• Shellfish.
• Nuts.
• Whole grains.
• Beans.

Tips To Prevent Collagen Damage

Dr Goel says that healthy habits such as regular exercise, adequate sleep, daily sun protection, and a balanced diet rich in fruits, vegetables, and antioxidants help protect collagen, support its natural production, and keep the skin healthier, firmer, and more resilient over time.

Shedding more light on this, Dr Furtado shares some tips to protect collagen: 

• Follow healthy daily habits.
• Wear sunscreen every day.
• Avoid smoking.
• Limit sugary foods and alcohol.
• Eat a balanced diet rich in fruits, vegetables, whole grains, and protein.
• Stay hydrated.
• Exercise regularly.
• Manage stress.
• Get 7–8 hours of quality sleep. 

“These simple lifestyle choices can help maintain healthier skin and slow premature ageing over time,” concludes Dr Furtado.

ALSO READ- Does Sugar Cause Collagen Breakdown? Expert Weighs In

Conclusion

There are different everyday habits, such as excessive sun exposure, smoking, poor diet, and chronic stress, all of which can lead to collagen breakdown. This rapid decline in essential proteins causes visible signs of premature ageing such as wrinkles and sagging skin. However, you can prevent this damage by adding collagen-boosting foods in your diet that are rich in protein, vitamin C, and essential minerals. By pairing a nutrient-rich diet with mindful lifestyle practices such as wearing sunscreen, managing stress, and prioritising quality sleep, you can protect your skin health and prevent your youthful glow from fading away.