Popeye was right about spinach: dark green leafy Leave a Comment / By Concepcion Topete / June 25, 2026 “Popeye was right about spinach: dark green, leafy vegetables are the healthiest food on the planet. As whole foods go, they offer the most nutrition per calorie.” Please wait... Related PostsI won't eat anything greenAs I see it a green salad is an open invitation toMichael Greger