Burn Fat Faster with Smarter Fasting

Hard - Requires significant effort Recommended

In a bustling lab at the University of Belgium, researchers watched young men burn fat with remarkable efficiency after combining intense exercise with fat-focused diets. The men taking coconut oil extracts in the morning and skipping breakfast saw 20% more ketones in their blood than when they ate carbs. These ketones powered their brains, suppressed hunger, and stoked their mitochondria for hours. Back at home, you brew your Bulletproof Coffee with the pure C8 MCT oil that researchers used. Two hours later, you dash out of your living room for sprint intervals until your heart pounds. You return to a lunch built on leafy greens, grass-fed meat, and a small portion of yams—just enough to signal recovery without derailing ketosis.

Replace your usual oatmeal with a cup of Bulletproof Coffee enriched with MCT oil. Later in the day, push your heart rate high for fifteen minutes of intervals—run, jump, or bike. Finally, fuel recovery with a balanced meal of protein, healthy fats, and limited starchy carbs. This science-backed cycle of fasting, fat, and smart refueling flips on your fat-burning switch and keeps you lean without endless willpower battles. Give it a go at lunch this week.

What You'll Achieve

You’ll tap into a steady fat-powered energy source, curb cravings, and trigger hormonal fat-burning pathways. Externally, you’ll see accelerated, sustainable fat loss and enhanced physical and mental endurance.

Combine Coffee, Fats, and Fasting for Ketosis

1

Skip breakfast with Bulletproof Coffee

On your next non-exercise morning, prepare Bulletproof Coffee with grass-fed butter and MCT oil instead of a solid breakfast. Make sure added protein is under 2 grams.

2

Time your workout after fast

For fasted fat burning, do a short high-intensity interval session about 6–7 hours after your coffee—around lunchtime. Keep it under fifteen minutes.

3

Break fast with fat and carbs

Post-workout, eat a meal with a mix of healthy fats, protein, and a small serving of starchy veggie or rice to refill energy without spiking insulin too high.

Reflection Questions

  • What excites you most about naturally entering ketosis every day?
  • How might a fifteen-minute HIIT session fit into your current schedule?
  • What small starchy refuel would most power your afternoon performance?

Personalization Tips

  • A graphic designer does morning Bulletproof Coffee, hits burpees in her office hallway, and skips the crunching snack later.
  • A teacher sprints up the school steps after his fat-rich coffee and powers through grading papers without a sugar crash.
  • A new entrepreneur alternates fasting days with protein-fast days to keep metabolism on hyperdrive.
The Bulletproof Diet: Lose up to a Pound a Day, Reclaim Energy and Focus, Upgrade Your Life
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The Bulletproof Diet: Lose up to a Pound a Day, Reclaim Energy and Focus, Upgrade Your Life

Dave Asprey 2014
Insight 3 of 7

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