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How many calories does a matcha with oat milk have? Your complete nutritional guide

5 min read

A standard 8-ounce matcha latte with oat milk can contain between 120 and 160 calories, though this number can change dramatically depending on the brand and added sweeteners. This guide will explain precisely how many calories does a matcha with oat milk have and how to control your intake.

Quick Summary

The calories in a matcha with oat milk can vary widely. Factors like drink size, oat milk type, and sweeteners significantly impact the total count. Learn how to estimate and reduce the calories in your beverage.

Key Points

  • Base Calories: A standard 8oz oat milk matcha latte typically contains 120-160 calories before adding any sweeteners.

  • Milk is the Main Factor: Oat milk's higher carbohydrate and fat content, especially in barista blends, means it contributes more calories than other plant-based milks like almond milk.

  • Sweeteners Add Up: A single teaspoon of sugar adds about 16 calories, significantly increasing the total count in a sweetened latte.

  • Watch the Brands: Commercial or cafe lattes often use sweetened syrups and larger portions, pushing calorie counts to 200-300+.

  • Control is Key: Making your latte at home allows you to use unsweetened oat milk and low-calorie sweeteners to manage the calorie total effectively.

  • Matcha's Role: The matcha powder itself contributes a minimal amount of calories, around 3-6 per serving, and is packed with antioxidants.

In This Article

The Calorie Breakdown of a Matcha with Oat Milk

Understanding the components of your drink is the first step to figuring out its total calorie count. A matcha latte with oat milk has three main ingredients: the matcha powder, the oat milk, and any added sweeteners. The inherent calories are negligible from the matcha itself, while the milk and any additions contribute the vast majority.

Matcha Powder Calories

Matcha powder, derived from finely ground green tea leaves, is naturally low in calories. A single serving, which typically uses about 1-2 grams of powder, contains approximately 3 to 6 calories. These calories come from a small amount of carbohydrates and protein. For most practical purposes, the calorie contribution from the matcha powder can be considered insignificant when compared to the other ingredients in a latte.

Oat Milk Calories

Oat milk is the most significant contributor to the calorie count in this popular latte. Unlike other plant-based milks, oat milk has a higher carbohydrate content due to the oats used in its production. The calorie content varies by brand and type:

  • Original or Barista Blends: These often contain more calories due to added sugars and fats designed to create a creamy texture and foam. A cup (240 mL) can have around 120 calories. For example, Oatly's Original Oatmilk contains 120 calories per cup, while another brand might be slightly lower.
  • Unsweetened Oat Milk: Opting for an unsweetened variety is a simple way to reduce calories. These versions often have a lower sugar content and slightly fewer calories, depending on the brand.

The Impact of Sweeteners and Syrups

For many, a matcha latte isn't complete without a touch of sweetness. However, this is where calories can escalate quickly. Standard sweeteners like sugar, honey, and maple syrup can add a substantial amount of calories with every teaspoon or tablespoon added.

  • 1 teaspoon of sugar: ~16 calories
  • 1 teaspoon of honey: ~21 calories
  • Flavored syrups (e.g., vanilla, caramel) can add even more, with commercial drinks often using multiple pumps.

How Different Oat Milk Types Influence Calorie Count

Different types of oat milk from various brands have a significant impact on the final calorie count. Let's explore the differences and their effects:

  • Barista-style oat milk: Engineered for frothing, these often have higher fat and calorie content than regular oat milk to achieve a creamier texture. Brands like Oatly Barista have more fat than their original counterpart.
  • Unsweetened oat milk: This is the most calorie-conscious option. By removing added sugars, you have more control over the total sweetness and can choose a low-calorie alternative if desired.
  • Light oat milk: Some brands offer lighter versions with fewer calories, fat, and sugar. These are an excellent choice for those seeking maximum calorie reduction.

To manage your calorie intake, it's wise to read the nutrition label of your chosen oat milk. The difference between an original barista blend and a light, unsweetened version can be over 50 calories per serving.

Comparative Calorie Table: Oat Milk vs. Other Milks

Here is a comparison of different latte options, based on an 8-ounce (240 mL) serving without added sweeteners.

Type of Latte Approximate Calories (Unsweetened)
Matcha with Water ~5 calories
Matcha with Almond Milk (Unsweetened) 50-70 calories
Matcha with Oat Milk (Original) 120-160 calories
Matcha with 2% Dairy Milk 120-150 calories
Sweetened Matcha Latte 200-300+ calories

Factors That Increase the Calorie Content

Serving Size Matters

It's not just the ingredients, but also the volume. A larger drink simply contains more of every ingredient, multiplying the calories. A 16-ounce (Grande) oat milk matcha latte from a coffee shop can easily contain 240 calories or more, especially when pre-sweetened. A smaller, 12-ounce (Tall) can contain around 190 calories.

Toppings and Flavor Shots

Coffee shop drinks often come with extra additions that dramatically increase the calorie count. These can include flavored syrups, whipped cream, or drizzles. Just one tablespoon of whipped cream can add around 50 calories, and multiple pumps of a sweetened syrup can add 20 to 50 calories each.

Store-Bought vs. Homemade

While a homemade latte gives you total control over ingredients, many pre-bottled or pre-mixed versions available at stores are sweetened for taste. This can lead to a significantly higher sugar and calorie content than if you made it yourself using unsweetened ingredients.

Tips for a Lower-Calorie Matcha with Oat Milk

If you want to enjoy the creamy, earthy flavor of a matcha oat milk latte without the extra calories, here are some practical tips:

  • Use unsweetened oat milk: This is the most impactful step, giving you complete control over the sugar content.
  • Use low-calorie sweeteners: Instead of sugar or syrup, opt for alternatives like stevia, erythritol, or a small amount of monk fruit extract.
  • Control your portion size: Opt for a smaller cup or measure your ingredients carefully when making it at home. This directly controls the total calories from the oat milk.
  • Add natural spices: For flavor without the calories, add a dash of cinnamon, ginger, or vanilla extract.
  • Consider a 'light' version: Some brands offer lower-calorie oat milk options specifically for health-conscious consumers. This can reduce the base calories from the milk component.

The Health Benefits of a Matcha Latte

Beyond the calorie count, matcha offers a range of health benefits, including being a powerful antioxidant source. Matcha powder, which is consumed as the whole leaf, delivers a highly concentrated dose of nutrients. It contains catechins like EGCG, which help fight inflammation and cellular damage. Additionally, the L-theanine in matcha promotes a state of calm alertness, offering a focused energy boost without the jitters associated with coffee.

Conclusion: Finding the Right Balance

In summary, the calorie content of a matcha with oat milk is primarily determined by the specific type of oat milk used, the inclusion of sweeteners, and the drink's size. While a basic, unsweetened version is a relatively low-calorie and nutrient-rich beverage, additions can quickly increase the total. By opting for unsweetened oat milk, controlling portion sizes, and using low-calorie sweeteners or spices for flavor, you can craft a delicious and healthy latte that fits your dietary goals. The versatility of this drink means it can be customized to strike the perfect balance between indulgence and mindful nutrition. To learn more about matcha's general health properties, read about its benefits at Matcha Source.


Frequently Asked Questions

Almond milk is the lower-calorie choice. An unsweetened almond milk matcha latte is typically around 50-70 calories, while an unsweetened oat milk version is closer to 120-160 calories per 8oz serving.

A grande (16 oz) Starbucks matcha latte with oat milk contains around 240 calories. This includes the calories from their sweetened matcha base and oat milk.

Zero-calorie sweeteners like stevia or erythritol are the best choices for minimizing calories. Natural options like maple syrup or honey add calories, so they should be used in moderation.

Yes, absolutely. By using unsweetened oat milk, a minimal amount of natural sweetener or a zero-calorie alternative, and controlling your portion, you can make a much healthier version at home.

No, the grade of matcha powder does not significantly impact the calorie count. Both ceremonial and culinary grades contain a minimal amount of calories per serving (3-6), but their flavor and texture differ.

Matcha is rich in antioxidants, particularly EGCG, and contains L-theanine, an amino acid that promotes a calm state of alertness. It can also support metabolism and heart health.

Yes, flavored syrups can dramatically increase calories. Each pump can add 20 to 50 calories, and many commercial drinks use several pumps, pushing the total calorie count well over 200-300.

Oat milk is made from oats and water, resulting in a higher carbohydrate content and naturally more calories than the water-and-almond-based almond milk. This gives oat milk its signature creaminess.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.