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Health Benefits of Lemon Peels That Make Them Worth Eating

Don't toss that peel lemon zest is packed with surprising nutrients that support your heart, immune system, and more.

When life gives you lemons, don’t throw away the peel. While most of us are used to squeezing out the juice and discarding the rest, lemon peels are rich in nutrients and antioxidants that can support overall health. In fact, emerging research suggests that the peel may be even more beneficial than the pulp or juice.

Here’s what you need to know about the health perks of lemon peels and how to add them to your diet.

1. A Powerful Source of Antioxidants

Lemon peels are concentrated with vitamin C, D-limonene, and hesperidin, all of which are known to:

  • Support the immune system

  • Reduce oxidative stress

  • Lower the risk of chronic diseases

A lab study comparing various citrus fruits found that lemon peels may contain more antioxidant activity than grapefruit or tangerine peels. These antioxidants work by neutralizing free radicals that damage healthy cells, which may help protect against certain diseases.

2. They Offer More Fiber Than the Fruit Itself

Just one tablespoon of lemon peel contains:

  • 1 gram of pectin, a type of soluble fiber

  • 8 mg of calcium

  • 9% of your daily vitamin C needs

  • Trace amounts of potassium and magnesium

Fiber is crucial for digestion, blood sugar regulation, and heart health. Interestingly, the peel contains more fiber than the juice or flesh, making it a smart way to boost your daily intake.

3. Supports Better Dental Health

Lemon peels have natural antibacterial compounds that may benefit oral hygiene. Early studies show that lemon peel extract can help inhibit the growth of Streptococcus mutans, the bacteria most commonly associated with cavities and gum disease.

Adding a bit of zest to your routine may help keep your mouth healthier between brushings though it’s no substitute for regular dental care.

4. May Reduce Risk of Heart Disease

Lemon peels contain compounds that may help address several key risk factors for heart disease, including:

  • High blood pressure

  • High LDL (“bad”) cholesterol

  • Obesity

In one study, adolescents with excess weight who took a supplement containing lemon peel saw reductions in blood pressure and cholesterol. Other research has found similar effects in adults using lemon peel extract.

Much of these benefits are attributed to the antioxidants and fiber, which work together to support healthy circulation and cholesterol balance.

5. Natural Antifungal and Antimicrobial Properties

Initial lab findings suggest that lemon peels may help fight bacteria and fungi, including strains resistant to antibiotics. These properties may help prevent minor infections or even be useful in natural cleaning and skincare routines.

While more human studies are needed, this points to lemon peel’s potential beyond nutrition as a natural, plant-based antimicrobial agent.

6. Potential Cancer-Fighting Benefits

Lemon peels contain D-limonene, hesperidin, and vitamin C, all of which have been studied for their cancer-protective properties. These compounds may:

  • Promote healthy cell growth

  • Reduce inflammation

  • Block the formation of certain cancer-causing agents

Population studies have linked higher consumption of citrus peels with a reduced risk of certain cancers, including skin and colon cancers. While this is promising, clinical research is still ongoing.

How to Add Lemon Peel to Your Diet

If you're ready to start reaping the benefits of lemon peels, here are a few easy and safe ways to get started:

  • Scrub lemons thoroughly before using the peel to remove pesticide residue

  • Zest the peel and sprinkle it over yogurt, oatmeal, or baked goods

  • Stir into marinades, salad dressings, or sauces for added brightness

  • Use as a garnish for fish, seafood, or roasted vegetables

  • Add to cooking water for grains or soups to infuse a citrusy aroma

  • Store extra zest in the fridge for up to several days

Just be mindful of quantity lemon peel is flavorful and slightly bitter, so a little goes a long way.

The Takeaway

Lemon peels aren’t just kitchen scraps they’re a nutritional powerhouse in disguise. From boosting immunity to supporting heart and dental health, the humble peel deserves a place on your plate. With just a few simple tweaks, you can make the most of every lemon.

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