Is Green Tea Good for Blood Sugar?

By Bridget Reed
Medically Reviewed by:

Heidi Wright, BSN, RN, PCCN, and Certified Master Herbalist

Is Green Tea Good for Blood Sugar?

November 03, 2023

Green tea is known around the world as a flavorful beverage filled with wellness-supporting properties. It's not just a drink; it's a soothing elixir that has been linked to a plethora of health benefits. This article will dive into the relationship between drinking green tea and maintaining healthy blood sugar levels, highlighting the impact of green tea consumption on glucose levels. 

What Nutrients Does Green Tea Contain?

Green tea is a treasure trove of components that collectively contribute to overall health and wellness. Its blend of unique elements highlights its standing as more than just a refreshing beverage:

  • Polyphenols: Found abundantly in green tea, polyphenols are natural compounds that support various aspects of health, potentially supporting the body’s natural ability to manage oxidative stress.
  • Catechins: These natural antioxidants are key in enhancing overall well-being, with the potential to support the cardiovascular system.
  • EGCG (epigallocatechin gallate): This specific catechin, present in significant amounts in green tea, has been researched for its possible health-sustaining properties.
  • Amino acids: Essential for numerous bodily functions, the amino acids in green tea, including L-theanine, contribute to cognitive and overall well-being.
  • Vitamins and minerals: The range of vitamins and minerals in green tea work synergistically to bolster overall health, offering comprehensive support to various body systems.

Furthermore, green tea holds other vital compounds that contribute to its overall health-supporting profile. The caffeine content, albeit lower than other teas, offers a balanced energy boost, enhancing alertness and focus without the overwhelming rush experienced with other caffeinated beverages. Additionally, green tea’s minimal calorie content complements a balanced diet, aiding in weight management and overall well-being. 

The wealth of components found in green tea form a harmonious blend, each offering its unique support to health and wellness, making it a worthy addition to daily dietary habits.

What Are the Different Types of Green Tea?

In the midst of exploring the healthful components of green tea, let's shift the spotlight to the different types of green tea that contribute distinctively to our well-being. 

Navigating through the world of green tea, you'll encounter a variety of unique flavors, textures, and health benefits:


This Japanese green tea is not only renowned for its refreshing taste but is also a treasure trove of health-enhancing properties. 

Our Wellness Functional Tea, which contains Sencha alongside other ingredients like tulsi leaf, ginger root, and fennel seed, provides a perfect blend of taste and health benefits. Both are a boon to those seeking not only a delightful tea-drinking experience but also a gentle boost to their overall wellness.


Another gem from Japan, Matcha is a finely ground powder of specially grown and processed green tea leaves, celebrated for its vibrant green color, rich flavor, and a host of antioxidants.


Known as the finest Japanese green tea, Gyokuro leaves are shielded from the sun for around 20 days before harvesting, which elevates its chlorophyll content and imparts a light, sweet flavor.

Dragonwell (Longjing)

Hailing from China, this pan-roasted green tea is known for its high quality and slightly sweet, chestnut-like taste.


This Chinese green tea has leaves that are rolled into small pellets resembling gunpowder. It unfurls and expands when brewed, providing a bold, slightly smoky flavor.

Each variety of green tea, be it Sencha, Matcha, or any other, offers a unique journey of flavors and wellness, allowing you to explore and find the one that resonates most with your preferences and health aspirations.

What Are the Potential Benefits of Green Tea for Blood Sugar?

Now that we’ve covered the various types of green tea, let’s dive into how this tea influences blood sugar levels and insulin sensitivity, offering insight into its potential role in supporting balanced health and well-being.

Green tea stands out as a supportive beverage for maintaining balanced blood glucose levels. Research suggests it may play a role in supporting proper insulin sensitivity, helping the body to effectively manage glucose levels. This tea may assist in maintaining stable blood glucose levels by providing consistent support to the body’s natural insulin mechanisms. Additionally, the compounds present in green tea may offer support against insulin resistance, a significant concern for many individuals, ensuring the body remains responsive to insulin's essential functions. 

The potential of green tea to assist in supporting both glucose levels and insulin sensitivity underpins its status as a beneficial inclusion in a balanced lifestyle dedicated to maintaining optimal wellness.

How Does Green Tea Support Weight Management?

In the world of weight management, green tea shines as a natural assistant. Its potential to support weight loss efforts is increasingly recognized, contributing to a balanced approach to managing body weight. Green tea’s modest calorie content complements nutritional goals, and its inclusion in a health-conscious diet can provide seamless support for weight management objectives. 

The potential of green tea to contribute positively to weight loss and overall body weight maintenance is rooted in its unique composition, offering a nurturing and gentle support system for those navigating the path of healthy weight management.

Are There Any Potential Risks Regarding Green Tea and Blood Sugar?

As we embrace the beneficial aspects of green tea, it’s also imperative to consider potential side effects and other considerations, especially concerning blood sugar management. Although green tea is generally regarded as safe and beneficial, excessive consumption can lead to some concerns. It’s crucial to approach green tea consumption with balance and mindfulness to reap the optimal health benefits it offers.

Consulting a healthcare professional for personalized guidance is always an important step to ensure that the inclusion of green tea as a dietary component aligns with individual health needs and conditions. This can help you safeguard against unintended side effects while also maximizing the benefits.

What Are Some Practical Tips for Green Tea Consumption?

Embarking on the green tea journey for better blood sugar management? Here are some friendly and nurturing tips to maximize the health benefits of green tea and ensure your experience is as smooth and beneficial as possible:

Determine the Right Amount

Start with one or two cups of green tea a day. Pay attention to your body's response, and adjust as necessary. Consistent, moderate green tea consumption may contribute to blood pressure and cholesterol management, alongside its potential blood sugar benefits.

Choose Quality

Opt for high-quality green tea or green tea extract. Quality plays a crucial role in ensuring you receive the maximum health benefits. It's not just about quantity, but also the richness of antioxidants, polyphenols, and other essential compounds present in the tea.

Considering our Glucose Functional Tea is an excellent move for those seeking additional support, too. Made with gymnema sylvestre, ceylon cinnamon, bitter melon, dandelion root, and fenugreek, it’s designed to support healthy glucose levels alongside the benefits of green tea.

Our Glucose Polyphenol Plus EGCG Liquid Extract also features green tea leaf alongside stevia, deionized water, and organic honey for a convenient and tasty way to enjoy wellness benefits. This product is rich in antioxidants, vegan-friendly, and calorie-free for a simple way to incorporate green tea into your routine. 

Balance With Diet

Complement your green tea consumption with a balanced diet low in processed carbohydrates. The synergy of a nutritious diet and green tea can help control blood sugar and maintain a healthy body weight.

Be Mindful With Supplements

While green tea supplements can provide concentrated benefits, approach with care. Consult a healthcare professional to ensure they seamlessly integrate into your health routine without causing unintended interactions or side effects.

Incorporate Variety

Don't just stick to green tea. Oolong tea, for example, can also offer beneficial properties. A diverse tea routine can keep things exciting and enhance overall wellness.

Listen to Your Body

Pay attention to your body’s responses to green tea. Adjust your consumption to align with your body’s needs, and consult a healthcare professional for personalized guidance.

Avoid Excess

Too much of anything, even green tea, isn't beneficial. Maintain balance to ensure you're not counteracting the positive effects and causing unnecessary stress on your body.

Bottom Line

In the lush landscape of green teas, amidst varieties like Sencha, Gyokuro, and more, each leaf tells a story of wellness, equilibrium, and tradition. As we step into the world of green tea, it's evident that it holds a place not just in teacups but in the holistic approach to health and wellness, epitomizing balance, vitality, and mindfulness.

In the American wellness sphere, where trends like black tea and other beverages have made their mark, green tea stands out for its unique benefits, especially in the realm of blood sugar management. The trends may shift, but the consistent research backing green tea's potential in supporting various aspects of health, including managing high blood sugar, remains a steady beacon of hope for many.

At Herbaly, we cherish the timeless appeal and diverse benefits of green tea. While navigating the trending waves of the wellness world, we find solace and reliability in the green tea leaf, a symbol of enduring wellness and balance. 

This sentiment guides our Functional Teas — which are meticulously crafted with harmonious blends of sencha green tea and other nourishing ingredients like tulsi leaf, ginger root, and fennel seed. It's more than just a beverage; it's a commitment to nurturing your body and mind, offering a peaceful and supportive ally in your journey towards balanced blood sugar levels and overall health.


Green tea Information | Mount Sinai | New York

Green Tea Extract | Stanford Medicine

5 Science-Backed Reasons to Drink Matcha Tea | Food Revolution

Effect of green tea consumption on blood pressure: A meta-analysis of 13 randomized controlled trials | PCM

Effect of green tea on glucose control and insulin sensitivity: a meta-analysis of 17 randomized controlled trials | PubMed

Can green tea preparations help with weight loss? | PMC

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