The latest iteration of the Beyond Burger, made with avocado oil and 20% less sodiumBeyond Meat is launching a new version of its plant-based burger in grocery stores this spring, betting that an even healthier version of its burgers will lure back consumers.The unveiling Wednesday comes at a pivotal time for Beyond as a company. The plant-based meat category, once buzzy, has lost consumers' interest. Retail sales of meat alternatives have fallen 33.6% compared with a year ago as of Jan. 28, according to Ci ...