Fasting Damages Your Mitochondria: Here's How — Key Takeaways

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Fasting Damages Your Mitochondria: Here's How
Jay Feldman Wellness18mJun 23, 2026
Watch the originalTo safely clear stored PUFAs, combine vitamin E, vitamin C, glutathione precursors (glutamine, glycine, cysteine), CoQ10, aspirin (to block COX/LOX enzymes), and resistance training to build muscle mass that burns fatty acids — while prioritizing carbohydrate oxidation over fat burning.
Key takeaways
Fasting mobilizes stored PUFA, mimicking a high-PUFA binge
Fasting mobilizes stored PUFA, mimicking a high-PUFA binge
- Releasing PUFA-laden fat stores during fasting floods tissues with polyunsaturated fatty acids, poisoning mitochondrial enzymes and spiking oxidative stress.
- This compounds the existing stress-state shift away from glucose, creating a double hit on energy production efficiency.
Prioritize carb oxidation over fat oxidation when PUFA-loaded
Prioritize carb oxidation over fat oxidation when PUFA-loaded
- Forcing ketosis while tissues are PUFA-rich increases mitochondrial ROS, which directly degrades membrane PUFA and worsens oxidative damage.
- Fat oxidation also suppresses pentose phosphate pathway, cutting NADPH production and impairing glutathione recycling.
Multi-target protocol to safely clear stored PUFA
Multi-target protocol to safely clear stored PUFA
- Vitamin E + C + glutathione precursors (glutamine, glycine, cysteine) + CoQ10 + polyphenols neutralize lipid peroxides released during PUFA turnover.
- Aspirin blocks cyclooxygenase; Boswellia blocks lipoxygenase — together preventing PUFA conversion to prostaglandins and leukotrienes.
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In this video
- 1mRay Peat on the harmful effects of fasting
- 2mthe cost of stress and increased fat metabolism
- 4mthe dangers of releasing PUFA from storage and how long it takes to deplete PUFA
- 7mstrategies for protecting against PUFA
- 13mhow long it takes to see benefits from lowering PUFA and setting expectations for progress
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