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From gummies to powders, collagen is a $2 billion obsession. Here’s what researchers have actually found. Walk through any wellness aisle — or scroll through your favorite health creator’s feed — and it won’t take long before you spot collagen. It’s in your morning coffee, your evening gummies, your post-workout shake. The promise is almost […] The post Collagen supplements are everywhere — But does the science back the hype? appeared first on Rolling Out .