PF 90 Gel by Precision Hydration — The design of these pouches makes it really easy to slurp the gel efficiently and the cap is resealable. I much prefer the simplicity of bringing one big 90g gel over several small gels!
Carb & Electrolyte Drink Mix by Precision Hydration — Two scoops of this in a 500 ml soft flask with water is all I need fluid and electrolyte-wise to start a sub-ultra race. Plus it gives you an extra 30g of carbs!
PH 1000 by Precision Hydration — Great source of electrolytes without any overwhelming flavors!
Gnarly Performance Greens by Gnarly Nutrition — I've been using this every single morning for years! It's got everything you need so you don't have to take a dozen different supplements. I also bring it on fastpacking trips where access to fresh fruits/veggies is limited!