A November 2025 KFF Health Tracking Poll found that about one in eight U.S
[DOI] [PMC free article] [PubMed] [Google Scholar] 142.Biagi E., Quercia S., Aceti A., Beghetti I., Rampelli S., Turroni S., Faldella G., Candela M., Brigidi P., Corvaglia L
It is commonly used by individuals looking to support joint comfort, muscle recovery, and overall physical resilience
Consider these common causes: Metabolic adaptation Decreased physical activity Inconsistent dietary habits Recognizing these causes helps with planning effective changes
If youre in a calorie deficit, that kind of sustained energy can be a game changer