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.
Energy drinks
Examining the ingredients, effects, and potential risks of energy drinks on men's health and performance. Learn how these popular beverages impact your heart, hormones, and training results.
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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 ...
Why do energy drinks make me tired? The crash mechanics and the best cutoff before bed
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 21, 2025 · 14 min read
Energy drinks can make you tired because caffeine and sugar can create a short-lived spike followed by a “crash,” and caffeine can also disrupt sleep long after the can is empty. If you keep asking “why do energy drinks make me sleepy,” the answer is often a mix of brain chemistry, blood sugar swings, hydration, ...
The truth about energy drinks without sucralose: What to know before you crack a can
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 20, 2025 · 14 min read
Energy drinks without sucralose can reduce your exposure to one common artificial sweetener, but they are not automatically “healthy.” The real make or break factors are caffeine dose, added sugar, stacked stimulants like guarana, and whether the drink disrupts your sleep, gut, or blood pressure. Here is the truth about energy drinks without sucralose and ...