SoyBoys Take Another "L"

https://www.gmwatch.org/en/106-news/latest-news/20099-rat-feeding-study-suggests-the-impossible-burger-may-not-be-safe-to-eat

2015: "The FDA concluded, 'FDA believes that the arguments presented, individually and collectively, do not establish the safety of SLH for consumption, nor do they point to a general recognition of safety.'"

2017: "It was always unlikely that SLH would have strong and obvious toxic effects in the short term; any adverse effects from a novel food substance would likely be subtle. Long-term studies with relatively large numbers of animals are required in order to reveal the significance of such effects. Given these requirements, it seems clear that Impossible Foods’ study was statistically weak. There were too few animals in each test group (10 per s*x per group) and again, the study was too short in duration (28 days in a rat is equivalent to just 2-3 years in a human) to clarify any health concerns from long-term consumption of this product."

"The only way of ascertaining if potentially adverse effects seen in short studies are truly adverse or have lasting consequences is to extend the study length to the rats’ full lifetimes (2-3 years) and to do multigenerational testing. In this case, neither was done."