Lakewood, Colo. — Natural Grocers®, the nation’s largest family-operated natural and organic retailer, has marked an important sustainability milestone: preventing 500 million single-use plastic bags from impacting the environment since 2009 with its disposable bag-free checkouts and additional practices to reduce packaging and waste. Founded in 1955, Natural Grocers is known for its commitment to the health and wellbeing of humans, animals and the planet. As part of this ongoing commitment, the company adopted single-use bag-free checkouts at the register in 2009, with its ‘Bring Your Own Bag’ program. The …