Yah. You apparently didn't even read your own link.
"Quercetin, because of its little absorption in gastrointestinal tract, enormous first pass metabolism, gastrointestinal instability, low hydrophilicity, and poor solubility, is a challenging pharmacological agent to be delivered [107]. Its oral bioavailability has been illustrated to be less than 17% in animals and less than 2% in human, hence restricting its clinical use utilizing conventional dosage forms [108, 109]. Therefore, an ameliorated quercetin oral formulation is needed with higher efficacy and better bioavailability."
Translation: Buying typical over-the-counter Quercetin is a total waste of money.
insanitea 1 points 1.6 years ago
Yah. You apparently didn't even read your own link.
"Quercetin, because of its little absorption in gastrointestinal tract, enormous first pass metabolism, gastrointestinal instability, low hydrophilicity, and poor solubility, is a challenging pharmacological agent to be delivered [107]. Its oral bioavailability has been illustrated to be less than 17% in animals and less than 2% in human, hence restricting its clinical use utilizing conventional dosage forms [108, 109]. Therefore, an ameliorated quercetin oral formulation is needed with higher efficacy and better bioavailability."
Translation: Buying typical over-the-counter Quercetin is a total waste of money.