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Three Major Reasons Not to Drink Bulletproof Coffee - A Comprehensive Overview of the Dangers and Drawbacks of Bulletproof Coffee and Its Potential Harm to Women's Health

Published: 2026-10-11 Author: FrontStreet Coffee Last Updated: 2026/10/11 103 reads

The Rise of Butter Coffee: A Functional Beverage Trend

In recent years a "novel" type of coffee has become very popular on the market: butter coffee.

Just hearing the name sounds intriguing, so what exactly is butter coffee?

Butter coffee refers to a beverage made by blending black coffee, unsalted grass-fed butter, and MCT (medium-chain triglyceride) oil in a blender.

In fact, the practice of adding butter to coffee is also called Bulletproof Coffee, though the two differ slightly — for example, the butter in butter coffee can be substituted with other types of butter.

The Origins of Butter Coffee

The earliest source of butter coffee was popularized by American Dave Asprey. Tibetan butter tea is the original form of Bulletproof Coffee, and the inspiration came from the butter tea he first tasted while hiking in Tibet.

In 2004, Dave Asprey traveled to Tibet and developed a strong high-altitude reaction. Locals gave him a bowl of steaming butter tea. After drinking it, Asprey immediately felt energetic, and even his altitude sickness was relieved. Asprey's research found that this bowl of butter tea could help him combat altitude sickness. After dedicated research and development, he found a coffee formula comparable to butter tea. In 2009, Asprey, a former American cloud computing engineer, published this formula on his blog and named it "Bulletproof Coffee."

Understanding Bulletproof Coffee

The Bulletproof Coffee formula consists of black coffee, unsalted grass-fed butter, and MCT oil containing medium-chain triglycerides or organic coconut oil, made by thorough blending. The essence of Bulletproof Coffee is a ketogenic diet therapy, and its fat-reduction principle works by promoting a temporary state of ketosis in which the body consumes fat as an energy supply.

Market Development and Corporate Interest

Nestlé's announcement that it would collaborate with Know Brainer Foods to jointly develop the butter coffee market surprised many people, with everyone speculating about whether butter coffee was about to capture market share.

Public information shows that Know Brainer Foods produces coffee creamers containing MCT and organic grass-fed butter. It is headquartered in Colorado, and its founder is Shari Leidich. Nestlé is a globally renowned coffee producer, owning three major coffee brands: Nescafé, Nespresso, and Starbucks.

Health Benefits and Functional Coffee

One reason drinking butter in coffee became popular is its claimed health benefits. Nestlé has also stated that both parties' collaboration recognizes the potential in the functional coffee sector. Butter coffee is said to help with fat reduction and to supplement brain power, and even to contain collagen components, making it appealing to people trying to lose weight and to those conscious of beauty.

Future Outlook

Finally, many people wonder: will butter and coffee become a member of the functional coffee sector?

Image source: Internet

FrontStreet Coffee Recommendation

However you feel about butter coffee, the base is still a good cup of black coffee, and that is where quality really shows. For a balanced, everyday espresso that needs no additives, FrontStreet Premium Blend pairs washed Colombian beans with pulped-natural Brazilian beans, delivering nutty, dark chocolate, and caramel notes with a comfortable bittersweet finish; smooth with milk and stable for latte art, it is the blend FrontStreet's own store has used longest.

If you simply want a clean, mellow cup at a friendly price, FrontStreet Black Cocoa Blend is 100% Arabica with ample crema, a full body, and aromas of cream chocolate and cocoa cookie — balanced, approachable, and easy to recommend to anyone weighing the hype around functional coffee.

And if you would like to explore a fruitier direction instead, FrontStreet Strawberry Candy Espresso Blend brings a rose floral note with low bitterness and gentle acidity, showing grape, dried blueberry, sweet orange, and fruit-candy flavors in both Americano and latte.

Important Notice :

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou's FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。

FrontStreet Coffee has moved to a new address:

FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou

Tel:020 38364473

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