If you have spent time on TikTok recently, you may have noticed an unusual beauty trend: eating sardines for better skin. Yes, sardines—the small, oily fish known for their strong smell—are being called a new “beauty food” by influencers and skincare lovers.
The idea may sound strange, but there is some science behind it. Sardines are rich in omega-3 fatty acids, protein, vitamin D, vitamin B12 and other nutrients that can support overall skin health. Experts say these nutrients may help support the skin barrier, hydration and inflammation control. However, sardines are not a miracle skincare treatment, and eating them will not instantly give you flawless skin.
Why Are Sardines Trending as a Beauty Food?
TikTok users are increasingly talking about the idea of “eating your skincare.” Instead of focusing only on serums, creams and masks, the trend looks at how nutrition may affect the skin from the inside.
Sardines have become especially popular because they are a fatty fish packed with EPA and DHA omega-3 fatty acids. These nutrients are linked to processes involved in inflammation and skin health. Recent media coverage has highlighted the growing TikTok interest in sardines as a possible food for supporting glowing and hydrated-looking skin.
The fish may be “stinky,” but its nutritional profile is one reason beauty experts are paying attention.
How Can Sardines Support Better Skin?
1. Omega-3s May Support the Skin Barrier
Your skin barrier helps protect your body and keep moisture from escaping. When the barrier is not functioning well, skin may feel dry, irritated or sensitive.
Omega-3 fatty acids are important for overall health and may help support healthy skin processes, including inflammation control. The American Academy of Dermatology notes that omega-3s can help reduce inflammation and relieve dryness and irritation, while fish and seafood are important dietary sources.
Sardines are rich in omega-3s, making them one possible addition to a balanced diet for people who want to support their skin health.
2. They May Help With Inflammation
Inflammation can play a role in several skin concerns. Omega-3 fatty acids have been studied for their effects on inflammatory pathways, including those involved in the skin.
Research into dietary omega-3 supplementation suggests that these fatty acids can influence lipid mediators in human skin and inflammatory responses. Fish oil and its omega-3 fatty acids have also been widely studied for potential benefits related to skin protection and homeostasis.
This does not mean sardines can cure acne, eczema or other skin conditions. But including omega-3-rich foods as part of a healthy diet may support overall skin function.
3. Sardines Provide Protein for Healthy Skin
Protein is another important part of the story. Your body needs protein to build and repair tissues, including those involved in maintaining healthy skin.
Sardines are a good source of protein, along with other important nutrients. A balanced diet that includes enough protein can support normal body functions, but no single food can replace a complete skincare routine or healthy lifestyle.
The “beauty food” trend works best when viewed as part of a bigger picture: good nutrition, hydration, sleep, sun protection and appropriate skincare.
What About Collagen?
Collagen is one of the most talked-about topics in beauty today. It is an important structural component of skin and other connective tissues.
Fish-derived collagen has also been studied separately from simply eating sardines. Clinical research on fish collagen peptides has reported improvements in measures such as skin hydration, elasticity and density in some study participants. However, these studies examined specific collagen products or peptides, so the results should not automatically be interpreted as proof that eating a can of sardines will produce the same effects.
That distinction is important. Sardines are a nutritious whole food, while fish collagen peptides are concentrated products studied under specific conditions.
Why Do Sardines Smell So Strong?
The strong smell is one reason many people avoid sardines. Fishy odors can come from compounds produced naturally or through chemical changes in fish. In marine fish, trimethylamine and related processes are major contributors to the familiar fishy smell.
The smell may not make sardines glamorous, but TikTok users seem willing to overlook it because of their nutritional value.
You can make sardines easier to enjoy by adding them to toast, salads, rice bowls, pasta or crackers. Some people also mix them with lemon, herbs or other ingredients to reduce the strong flavor.
Will Eating Sardines Give You “Glass Skin”?
Probably not overnight.
This is where social media trends can become misleading. Sardines may provide nutrients that support healthy skin, but they cannot instantly erase wrinkles, dark spots, acne or sun damage.
Beauty experts and dermatologists caution that the benefits of omega-3-rich fish are generally part of long-term nutrition rather than an instant transformation. Results can vary depending on a person’s overall diet, genetics, lifestyle and existing skin concerns. Sardines should also not replace sunscreen, dermatologist-recommended treatment or a balanced skincare routine.
How Often Should You Eat Sardines?
For most people, the goal does not need to be eating multiple cans every day. Recent expert discussions around the TikTok trend generally point toward including fatty fish as part of a balanced diet, with two to three servings per week often discussed as a more reasonable approach than excessive consumption. Individual dietary needs can vary.
If you have a fish allergy, specific medical condition or dietary restriction, speak with a qualified healthcare professional before making major changes to your diet.
The Bottom Line
The viral TikTok obsession with sardines may sound like another strange beauty trend, but it is not completely without scientific support. Sardines contain omega-3 fatty acids, protein and other nutrients that can contribute to overall skin health.
Still, the key word is support. Sardines are not a magic treatment for perfect skin. They work best as one nutritious part of a balanced lifestyle.
So, if you enjoy the taste—or can get past the smell—adding sardines to your diet may offer more than just a quick meal. Your skin may benefit from the nutrients they provide over time, but glowing skin still depends on many factors, including nutrition, skincare, sun protection and overall health.
