It should be possible to do a fast till noon/ Or it might be the sugar in the fruit that makes you feel a bit hungrier. Also, the calories/composition the rest of the day.
Great heat stress case data from 4 London/Valencia marathons run by 39y Ewan Cameron (2018/19 2:22-2:35). One of the 4 marathons run under warm conditions (L2018, 24C). How does physiology and pace adjust? Relative HR pattern identical, pace adjusted down "from start" by brain. pic.twitter.com/u99yDPTlIe