I will be doing my first century ride next month. So far my longest ride has been 80 miles and a few 60-70 milers. During these rides I've consumed about 3 GU packs and stopped along the way for a latte and scone. I came across the GU website where they talk about nutrition during a century ride
https://guenergy.com/nutrition-plan/100mi-2/ and looking at the amount of stuff they are recommending it seems a bit excessive. Do I really need to eat all of this or will I be OK with 5-6 GU energy packs, electrolyte (Skratch) in my water bottles and an occasional drink/food at a rest stop?