I recently shared about berberine, a natural compound that supports fat metabolism and improves insulin sensitivity in a way similar to metformin. Since then, I’ve been asked whether eating barberries can provide a natural source of berberine. Barberries do contain berberine, usually around 5–7 percent, but the amount varies and you would need to eat a lot to reach an effective dosage. That’s why a high-quality berberine supplement is usually more reliable. Barberries and other nutrient-dense fr