It's the gel wrote:
Why is nobody talking about the introduction of Maurten in 2016? If you remember it was the "secret new fuel" Bekele was training with when he ran 2:03:03 in 2016. According to their site the last 24 World Major Marathon winners use this product. Kipchoge uses the product. Are we ignoring a huge component of performance improvement which is intra race nutrition?
Because unlike the vaporflys, Maurten doesn't seem to actully provide any advantage over it's competition.https://www.outsideonline.com/2404405/maurten-sports-drink-research