Bulletproof coffee has made headlines recently in the health and wellness realm, yet is it really all that nutritious? According to some reports, its claims include increasing energy levels, suppressing hunger pangs and aiding weight loss while increasing brainpower.

Dave Asprey introduced this drink in 2011 as part of his keto diet, which involves following a low-carb, high-fat diet designed to put your body into ketosis so it can use fat as fuel instead of carbs for energy. While many have taken to keto diet as an effective means of weight loss quickly, its long-term effects could prove hazardous.

Bulletproof coffee is created by blending together brewed coffee, MCT oil and grass-fed butter in a blender to emulsify their ingredients into one drinkable product. Each brand differs, but most recipes suggest mixing 8-12 ounces of coffee with one to two tablespoons of MCT oil and one teaspoon of butter or ghee – then stirring this blend to help emulsify both fats and liquids together before taking a sip!

A typical cup of BP coffee contains over 52 grams of fat and 470 calories, which is nearly twice what would typically be found in coffee with cream. Most of this fat comes from MCT oil and butter which both contain high levels of saturated fats derived from palm and coconut oils, respectively. According to the American Heart Association’s guidelines on daily saturated fat consumption (13.3g in daily diet for those eating 2,000 caloric intake and 22g total), but one single serving of BP coffee provides more than 15 g of saturated fat and 24 total grams.

Grass-fed butter contains omega-3 fatty acids and antioxidants, yet still contains saturated fat. The saturated fat contributes to the total caloric count in a cup of BP coffee, and may increase your cholesterol level if your family history involves cardiovascular disease or high cholesterol.

MCT oil contains medium-chain triglycerides (MCTs), which have been shown to boost metabolism and provide immediate energy to the body. Unfortunately, these types of TGC aren’t as beneficial for your health than animal fat or other types of saturated fats.

Bulletproof coffee may be popular, but its bold health claims cannot be supported by evidence. This beverage is high in calories and saturated fat while not providing significant amounts of protein or fiber. Enjoying one or two cups per month shouldn’t become part of your regular diet; focus on eating plenty of fruits, vegetables, whole grains, nuts seeds and lean proteins instead.