| Portion summary |
Carbohydrate drink mix: 277 g carbohydrate in approximately 1.5 L to 1.6 L of mixed drink across two tall bottles
Gels: 2 gels, approximately 58 g total carbohydrate
Fruit source bars: 2 bars, approximately 58 g total carbohydrate
Plain water: approximately 1.55 L total
Carbohydrate drink mix: 1108 kcal, 0 g protein, 277 g carbohydrate, 0 g fat
Gels: 232 kcal, 0 g protein, 58 g carbohydrate, 0 g fat
Fruit source bars: 232 kcal, 0 g protein, 58 g carbohydrate, 0 g fat
Plain water: 0 kcal, 0 g protein, 0 g carbohydrate, 0 g fat |
Drink mix: 277g carbohydrate worth of powder dissolved in ~1500–1600 mL water
Energy gel #1: ~1 standard sachet (~32–40g by weight)
Energy gel #2 (maple syrup): ~1 standard sachet (~32–40g by weight)
Fruit source bar #1: ~1 standard bar (~40–45g by weight)
Fruit source bar #2: ~1 standard bar (~40–45g by weight)
Plain water: ~2350 mL
Drink mix (277g carb): 1120 kcal, 0 g protein, 277 g carbohydrate, 0 g fat
Energy gel #1: 120 kcal, 0 g protein, 29 g carbohydrate, 0 g fat
Energy gel #2 (maple syrup): 120 kcal, 0 g protein, 29 g carbohydrate, 0 g fat
Fruit source bar #1: 140 kcal, 1 g protein, 29 g carbohydrate, 3 g fat
Fruit source bar #2: 140 kcal, 1 g protein, 29 g carbohydrate, 3 g fat
Plain water: 0 kcal, 0 g protein, 0 g carbohydrate, 0 g fat |
Carbohydrate drink mix: about 1,500 to 1,600 mL prepared drink
Energy gels, including one maple syrup gel: about 80 g total
Fruit source bars: about 70 to 80 g total
Plain water: about 2,050 to 2,150 mL
Carbohydrate drink mix: 1110 kcal, 0 g protein, 277 g carbohydrate, 0 g fat
Energy gels, including one maple syrup gel: 230 kcal, 0 g protein, 58 g carbohydrate, 0 g fat
Fruit source bars: 230 kcal, 0 g protein, 58 g carbohydrate, 0 g fat
Plain water: 0 kcal, 0 g protein, 0 g carbohydrate, 0 g fat |
| Assumptions |
The drink mix was primarily carbohydrate with negligible protein and fat
The stated carbohydrate amounts for gels and bars are accurate and refer to total carbohydrate
Plain water contributed no meaningful calories
The drink volume estimate assumes the two tall bottles were roughly 750 mL to 800 mL each |
Drink mix is a pure carbohydrate product (e.g. maltodextrin/fructose blend) with negligible protein and fat, which is standard for cycling drink mixes
Gels contain negligible protein and fat, consistent with typical energy gels
Fruit source bars contain a small amount of fat (~3g) and protein (~1g) per bar, consistent with fruit-based energy bars like Clif Fruit Source or similar
Plain water contributes zero macronutrients
Macro cross-check: (2 × 4) + (393 × 4) + (6 × 9) = 8 + 1572 + 54 = 1634 kcal, consistent with the 1640 kcal estimate (rounding accounts for the 6 kcal difference) |
Calories were estimated primarily from the stated carbohydrate amounts using 4 kcal per g.
The drink mix and gels were treated as essentially all-carbohydrate products.
The fruit source bars were treated as primarily carbohydrate with negligible protein and fat because no label details beyond carbohydrate were provided.
Macro-derived calories are broadly consistent with the estimate, with no meaningful discrepancy. |
| Uncertainty notes |
The main uncertainty is the exact product formulation of the drink mix, gels, and fruit source bars, which could add small amounts of protein, fat, or fibre and shift calories slightly |
The drink mix could contain trace protein or electrolytes with minimal caloric impact; this would not materially change the estimate
Fruit source bar macros may vary by brand; fat could range from 1.5–5g per bar, shifting total calories by up to ±40 kcal
If the drink mix brand includes any protein (some endurance mixes do), total protein and calories would increase slightly |
The main uncertainty is whether the specific fruit bars or gels contained small amounts of protein or fat beyond the stated carbohydrate; this would only change the total slightly. |
