So the latest advice if you’re trying to maximize performance seems to be take as much carb, sodium and water as you can handle without having a negative impact on performance. Which is to say, there will be some trial and error involved to find what’s right for you.
Based on advice from Dr Alex and others, I’ve found a sweet spot (no pun intended) at an hourly intake of 1L water with 150g carb and 1500mg sodium. Of course, I adjust that based on the demands of the workout, the weather, etc.
It seems like the advice for adjusting your recipe is something like this:
Keep adjusting carb up until you have GI distress to find an ideal. Adjust carb down on a really hot day unless you’re crazy heat adapted (your body will struggle to cool and digest simultaneously)
If you’re parched, increase water but increase sodium proportionally. If you’re peeing a lot, increase sodium without increasing water until that stops happening. Reduce sodium if you start to have GI distress
A good starting point is probably 90-120g carb per hour and ~1000mg sodium then tweak from there
Here’s what I’d do if on the bike per hour:
1/2tsp of sodium citrate will be about 1150mg of sodium
120g of sugar will be a 50/50 mix of fructose/glucose (actually, I mix in some maltodextrin to cut the sweetness and have a little faster absorbing carb and til the balance more towards glucose)
If running you might want to cut the sugar content down to 80g per hour.
I’d ditch the Honey Stinger waffles. At 7 grams of fat per waffle they slow digestion and absorption of the carbohydrates you really need. They do taste great:)
+1 for the app! Has really helped me dial in the drink mix to hit my target.
Still haven’t freed myself from PF&H gels though, I’ve found the “eating” of some carbs per hour helps trick my stomach into thinking it’s food, staving off hunger. That and the water isn’t a thick slurry all the time.
Disclaimer: This is a homemade sports nutrition beverage and we’re just eyeballing the electrolyte content because we are not hotshot scientists working for Big Sports Beverage. We don’t recommend setting out on a 50km run on the hottest day of summer with a few liters of Speed Swill®. Like, if you mix this up and then die in the desert, don’t blame us. We just make shorts and stuff. Also, Speed Swill® will not make you faster. If you want to go faster, you could probably add some caffeine, but we didn’t tell you that.