Episode 8: Celsius caffeine vs Red Bull: Which has more?
February 24, 2026 · 9:55
Celsius has more caffeine and less sugar than Red Bull; choose based on sleep, blood pressure, and metabolic risk.
Caffeine and heart health
Exploring the relationship between caffeine consumption and cardiovascular health, including how your daily coffee habit may impact heart function and long-term wellness. Learn how to balance the performance benefits of caffeine with keeping your heart in optimal condition.
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The essentials for caffeine and heart health — then explore the latest posts below.
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Diet Coke and other diet sodas contain essentially no calories, so they technically do not break a fast. But for many men, the sweet taste and caffeine can still shift hormones like insulin and cortisol in ways that can undercut why you are fasting in the first place. “If a guy asks me, ‘does diet ...
Celsius vs Red Bull caffeine: Which has more? Science shows
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 23, 2025 · 15 min read
Neither is universally better: Celsius is typically lower in sugar and calories but higher in caffeine, while classic Red Bull is lower in caffeine but much higher in sugar. Here is how to choose the lesser risk when you’re deciding between Celsius vs Red Bull, or skip both when you should. “When men ask me ...