Every year, more than 530 million people worldwide live with diabetes, and nearly half of adults over 40 struggle with high blood pressure. Cancer remains the second leading cause of death globally, according to the World Health Organization. These numbers are alarming, yet what if nature quietly offered some support in your kitchen garden?
One recipe shared by the late Dr. Frank Suárez, a well-known health educator, has sparked interest: a blend of pennyroyal oregano leaves, onion peel, and orange leaves simmered in water. Could such a simple preparation really have benefits for blood sugar, cardiovascular health, or even cancer prevention?
In this article, we’ll explore this intriguing home remedy step by step. You’ll discover the traditional wisdom behind each ingredient, what modern science says, and how people are experimenting with this herbal blend today. By the end, you’ll gain practical insights on integrating natural remedies into a broader, balanced approach to health—always alongside medical guidance.

Understanding Dr. Frank Suárez’s Remedy
The recipe is straightforward yet fascinating. It involves four natural ingredients:
- 4 leaves of pennyroyal oregano (orégano poleo)
- The peel of one onion
- 4 orange leaves
- 4 cups of water
The method is simple: boil the water with these ingredients, let it steep, and then drink the infusion once it has cooled slightly.
While it sounds modest, the plants used carry rich histories in herbal traditions across Latin America, Europe, and Asia. Let’s break down the potential significance of each component.
Pennyroyal Oregano: The Aromatic Healer
Pennyroyal oregano, known as orégano poleo, belongs to the mint family. Traditionally, it has been used for:
- Digestive aid: Calming bloating and indigestion.
- Respiratory support: Helping with coughs and colds.
- Antioxidant protection: Its essential oils and polyphenols may help fight oxidative stress.
Some herbalists suggest it may support circulation and metabolic health. While caution is advised (pennyroyal oil in high doses can be toxic), using a few fresh leaves in tea has long been considered safe in folk medicine.

Onion Peel: A Hidden Source of Quercetin
We usually discard onion skins, but they are actually rich in quercetin, a plant flavonoid studied for multiple health benefits.
- Anti-inflammatory effects: Quercetin may reduce oxidative stress, which plays a role in heart disease and diabetes.
- Blood pressure regulation: Some studies suggest quercetin supplementation can lower blood pressure modestly.
- Cancer research: Laboratory studies have shown quercetin’s potential in slowing the growth of certain cancer cells, though human trials are still ongoing.

Nutrient in Onion Peel | Potential Benefit |
---|---|
Quercetin | Antioxidant, anti-inflammatory, heart support |
Fiber | Gut health, satiety |
Polyphenols | Immune and metabolic support |
Adding onion peel to an herbal infusion is a resourceful way of extracting these compounds.
Orange Leaves: Gentle Relaxation and Circulatory Support
Orange leaves, often used in traditional teas across Mediterranean and Latin cultures, are valued for their calming effects.
- Mild sedative: They may help reduce anxiety and improve sleep quality.
- Digestive aid: Traditionally used to ease stomach discomfort.
- Circulation: Some natural healers believe orange leaf tea supports vascular health.
Although research on orange leaves is limited compared to the fruit itself, the leaves contain natural oils and flavonoids similar to those in citrus peels, known for their antioxidant potential.

How This Remedy May Work Together
When combined, these ingredients may offer synergistic effects:
- Metabolic support from oregano’s antioxidants and onion peel’s quercetin.
- Circulatory balance through flavonoids that promote vascular relaxation.
- Stress reduction from orange leaves’ calming properties, which indirectly help regulate blood pressure.
This doesn’t mean the infusion cures cancer, diabetes, or hypertension. Rather, it may act as a complementary ritual that supports overall wellness alongside medical care, balanced nutrition, and healthy lifestyle choices.
Scientific Perspective: What Research Really Says
Diabetes and Blood Sugar
Quercetin (from onion peel) has been studied for its role in improving insulin sensitivity. Animal models suggest it may lower fasting blood sugar, though more human studies are needed.
Blood Pressure
Meta-analyses indicate that quercetin supplementation can reduce systolic blood pressure by around 3–5 mmHg. While modest, this effect adds up when combined with other lifestyle measures.

Cancer
While no single herb can “eliminate cancer,” compounds like quercetin and citrus flavonoids are being studied for their role in inhibiting tumor growth and reducing inflammation. These findings are promising but should be seen as supportive, not curative.
Stress and Sleep
Orange leaves, like chamomile or lemon balm, may help calm the nervous system. Reducing stress is critical since chronic stress contributes to both hypertension and poor glucose control.
Practical Tips for Trying the Infusion
- Preparation: Wash ingredients well before boiling. Simmer gently for 10–15 minutes. Strain and drink warm.
- Frequency: Start with 1 cup daily and observe how your body responds.
- Pair with habits: Use it as part of an evening routine to wind down and support blood pressure naturally.
- Safety: Pregnant women, breastfeeding mothers, and people with liver or kidney conditions should consult a doctor before using pennyroyal oregano.
A Case Story: Elena’s Experience
Elena, a 52-year-old from Miami, had struggled with borderline high blood pressure for years. She discovered Dr. Suárez’s recipe through a community health group and decided to try it as part of her evening routine.
Within a month, Elena reported feeling calmer at night and noticed her morning blood pressure readings were slightly lower. Her doctor confirmed the improvements, though he reminded her not to replace prescribed medication. Elena now sees the infusion as a helpful addition—not a cure, but a natural support that makes her feel more in control of her health.
Stories like Elena’s highlight the psychological and lifestyle benefits of such remedies. They create mindful rituals that reduce stress while delivering plant-based nutrients.

Integrating This Remedy Into a Holistic Lifestyle
No tea or infusion can replace medical treatment. However, it can be part of a bigger picture of wellness:
- Balanced diet: Emphasize whole grains, vegetables, lean proteins, and healthy fats.
- Physical activity: Aim for at least 150 minutes of moderate exercise weekly.
- Stress management: Combine herbal teas with meditation, yoga, or simple breathing exercises.
- Medical checkups: Always monitor blood sugar, pressure, and cholesterol regularly.
By combining traditional remedies with modern science and lifestyle practices, individuals can feel empowered to take small daily steps toward better health.
Conclusion
Frequently Asked Questions
Can this remedy cure cancer, diabetes, or high blood pressure?
No. It may support overall health, but it is not a replacement for medical treatment.
Is it safe to drink daily?
For most healthy adults, yes, but always start small and consult a healthcare provider, especially if you take medications.
What’s the main benefit?
The infusion offers antioxidants, stress relief, and circulatory support that may complement healthy lifestyle habits.
Why did Dr. Frank Suárez promote it?
Because he believed in empowering people with simple, natural tools that could enhance wellness alongside medical care.
Exploring herbal remedies like this infusion reminds us that health is not only about prescriptions—it’s also about cultivating mindful habits, respecting traditional wisdom, and staying curious about nature’s gifts.
This content is for informational purposes only and is not a substitute for professional medical advice. Always consult your doctor before trying any new herbal practice.