Right now the USDA is taking evidence from experts on what the changes should be for the forthcoming USDA 2020 dietary guidelines. Red Pill Vegan is putting these together as a a playlist. Whether you are a low carb or a high carb advocate these depositions, each of which is limited to 3 minutes, provide extraordinary watching.
youtube.com/playlist?list=P...
What I find striking thus far is how very few of the low car advocates refer to science to back their assertions. Perhaps that's me being biased. If so please correct me.
Other than that I think this is a definitive video stream.