Energy gels, sports drinks such as Gatorade, and other running supplies are not available in Cuba. Please note that due to the U.S. Embargo Against Cuba, Cuba has few goods available for sale and shopping in Cuba is limited to basic necessities.
Please prepare in advance and bring any products you would normally need to run a marathon. This includes not only energy drinks and gels, but also running gear, extra shoelaces and whatever equipment you may require. Again, none of these items are available for purchase in Cuba.