Horsetail
Horsetail/Nutrient Depletion:
GlucoseGlucose: A different horsetail species (Equisetum myriochaetum) has reportedly caused low blood sugar levels in people with type 2 diabetes (10). Effects of Equisetum arvense are not clear. PotassiumPotassium: Horsetail may possess potassium-depleting properties that may cause hypokalemia (4094471). ThiamineThiamine: The silicon component of horsetail can break down thiamine and cause thiamine deficiency. This has been demonstrated only in animal models (8). Currently there is a lack of human clinical cases documenting this interaction.