Weight loss supplement spinach extract is manufactured from spinach leaves.
Powdered spinach extract can be added to water or smoothies. Also available in capsules and snack bars.
The powder contains concentrated spinach leaf thylakoids, tiny structures found in green plant chloroplasts.
Overweight women who consumed 5 grams of spinach extract daily for 3 months lost 43% more weight than those that took a placebo
BMI, fat mass, and lean mass reduced, but not significantly among groups. This study also included researchers with financial ties to the supplement manufacturer.
It looks spinach extract has no major adverse effects. It may temporarily lower insulin and raise blood sugar in healthy people.
It appears to have no long-term effects on blood sugar regulation. More research is needed to determine the safety of spinach extract for type 2 diabetics.