Keto coffee, often called bulletproof coffee, originated as a high‑fat, low‑carb breakfast option for people following ketogenic diets. It gained popularity through biohackers and fitness influencers who use it to boost energy and promote fat burning while keeping carbs minimal.

Traditional bulletproof coffee is served hot and uses butter or ghee with MCT oil, which solidify when mixed with cold coffee. This cold brew version replaces butter with only liquid oils (MCT and avocado) and adds protein powder, making it drinkable without clumping.

Cold brew keto coffee is popular as a quick on‑the‑go breakfast for busy professionals, athletes, and anyone following a ketogenic lifestyle. It’s often featured in morning routines, pre‑workout meals, and travel snacks rather than formal celebrations.

Authentic keto coffee includes high‑quality coffee, MCT oil, and a source of saturated fat like butter or ghee. Acceptable substitutes for a cold version are liquid MCT oil, neutral avocado oil, and plant‑based milk; protein can be pea, whey, or collagen powder.

Pair it with low‑carb options such as avocado toast on almond flour bread, cheese‑filled eggs, or a handful of nuts. These foods keep the meal high in fat and protein while staying within keto macros.

Common mistakes include using butter or ghee (which solidify in cold drinks), not blending long enough (causing protein clumps), and adding too much ice which dilutes flavor. Follow the recipe’s oil choices and blend thoroughly for a smooth texture.

Avocado oil is high in oleic acid and has a neutral taste, so it blends seamlessly with cold coffee without adding unwanted flavors. It also provides a stable fat source that stays liquid at refrigerator temperatures.

Yes, you can blend the drink and store it in a sealed bottle in the refrigerator for up to 24 hours. Give it a good shake before drinking, as some separation may occur.

The YouTube channel Thomas DeLauer focuses on science‑based nutrition, keto and low‑carb lifestyle advice, and quick, practical recipes that help viewers improve health, performance, and weight management.

Thomas DeLauer emphasizes evidence‑backed explanations, metabolic science, and simple, fast recipes that can be integrated into a busy lifestyle, whereas many other keto channels focus more on elaborate meals or purely aesthetic presentations.