Fructose, a naturally occurring sugar in fruits, fruit juices, certain vegetables, and honey, wreaks havoc on your skeletal muscles, causing oxidative stress, mitochondrial dysfunction, and even cell apoptosis (i.e., death)!
(DOI: 10.1007/s10495-015-1128-y)
(This picture is courtesy of Pixabay.) 👇🏻
Skeletal muscles, which account for the majority of your body’s glucose uptake, rely heavily on robust mitochondrial function. However, fructose retards this system, compromising energy metabolism and cellular integrity.
Fructose triggers excessive production of reactive oxygen species (ROS) and nitric oxide (NO) in muscle cells, thus damaging mitochondrial DNA, impairing respiratory complexes, and ultimately leading to energy crises.
These are the repercussions of exposing muscle cells to high levels of fructose:
- Surge in Reactive Oxygen Species (ROS) & Nitric Oxide (NO): Fructose induces excessive production of these damaging molecules, overwhelming cellular defenses.
- Depletion of Antioxidant Enzymes: Cellular safeguards like superoxide dismutase and glutathione are rapidly exhausted.
- Loss of Mitochondrial Membrane Potential: The vital electrochemical gradient collapses, impairing energy production.
- Decline in ATP Synthesis: With mitochondria crippled, cellular energy dwindles, hampering muscle function.
- Cellular Apoptosis: The culmination of these stressors is programmed cell death, leaving skeletal muscles weakened.
A domino effect begins with oxidative stress. Mitochondria overwhelmed by ROS become dysfunctional, reducing energy output and triggering stress signals, akin to a factory losing power and creating toxic byproducts!
HBO Chernobyl vibes🙃
Moreover, fructose also hampers mitochondrial biogenesis (the creation of new mitochondria) by reducing activation of AMPK, a key energy sensor. This blocks cellular repair and regeneration pathways.
Not great, not terrible. - Comrade Dyatlov
Fructose also destabilizes the balance of pro- and anti-apoptotic proteins like Bax and Bcl-2, tipping cells into programmed death, resulting in weakened muscle function and compromised metabolic health.
Therefore, fructose consumption sabotages skeletal muscles and contributes to insulin resistance, fatty liver, metabolic syndrome, and even type II diabetes.
Source: https://pubmed.ncbi.nlm.nih.gov/25913123/
In conclusion, fruits would never have been elevated to the top of dietary priorities if not for a multibillion-dollar industry profiting from intoxicating you with carcinogenic petrochemicals while simultaneously weakening you beyond recovery. And this is just the tip of the iceberg. We could also delve into cavity-causing oral bacteria, like Streptococcus mutans, which thrive on fructose.