This isn’t your garden-variety kitchen ingredient.  A new study suggests that once you’re done admiring a common ornamental flower for its looks, it could actually double as a surprisingly rich source of plant-based protein. An added bonus: it’s also packed with antioxidants, vitamins and minerals that may support skin, immunity and digestive health. Dried marigold powder is frequently used in creams and lotions for soothing skin. New research suggests it may also serve as a source of protein. Ekaterina – stock.adobe.com The findings come as America’s protein obsession shows no signs of slowing. The nutrient is made up of long chains of amino acids that act as the building blocks of every cell in the body. It plays a key role in nearly all bodily functions, including the growth and repair of muscles, bones, skin and hair. The Recommended Dietary Allowance is 0.8 grams of protein per kilogram of body weight — or 0.36 grams per pound. For a 150-pound person, that comes out to roughly 54 grams a day.…