(Speculation ahead!) Interesting point in video posted recently by Veritasium: Basically, they are doing experiments to track evolution in "realtime" of some organisms. During the conversation the guy mentions that the population growth of their organisms are controlled by adding or removing glucose for them to consume - basically as long as glucose is available, there will be growth. (First 5 minutes of video) This…
You eat sugar which feeds microbes so its not perfectly absorbed into your body. Then you eat meat with anti-biotics which kills the microbes and lets your body absorb the sugar directly.
Random HN comment alert by the way.