Energy balance
Chronic nutrient overload and sedentary behavior lead to 'oxidative distress' (excessive ROS), which causes insulin resistance in skeletal muscle by activating stress kinases (JNK, p38 MAPK) that inhibit insulin signaling.
Insulin resistance in skeletal muscle often starts with chronic nutrient overload, not just sugar. When you consistently consume more energy than you burn, it creates 'oxidative distress' that blocks insulin signals. Managing total energy balance and activity levels is critical to preventing this specific type of metabolic damage.
Chronic nutrient overload and dysregulated metabolism drive oxidative distress... Excessive mitochondrial ROS directly suppresses insulin signal transduction, promoting insulin resistance... excess ROS chronically activate stress-sensitive kinases, including p38 MAPK, JNK, NF-κB, and PKC, which shift from their physiological signaling roles to inhibitory functions by phosphorylating IRS-1 and IRS-2.
Why this rating
Supported by multiple citations of metabolic studies linking nutrient overload to ROS and insulin resistance.
Source
Redox Homeostasis in Metabolic Syndrome and Type II Diabetes: Role of Skeletal Muscle and Impact of Gold-Standard Treatments
Mia Wilkinson et al. · International Journal of Molecular Sciences · 2025
DOI 10.3390/ijms262110370
More from this paper
- Physiological levels of reactive oxygen species (ROS), specifically hydrogen peroxide (H2O2), act as essential signaling molecules that augment insulin sensitivity and glucose uptake in skeletal muscle by inhibiting negative regulators like PTP1B and activating Akt.Good
- Gold-standard T2DM medications (metformin, SGLT2 inhibitors, GLP-1 agonists) modulate the redox state of skeletal muscle, potentially restoring metabolic function and insulin sensitivity.Moderate
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