Interactive · Free

The Fuel Check

Most tools judge one food at a time on calories. This one scores your whole snack stack on carb quality — glycemic load, fiber, protein — against your goal. Build a stack and see.

1 · Your goal

Accessible carbs to power a run or ride.

2 · Build your stack

Rolled OatsBanana

Fuel check

271 kcal · 2 items
100
Fuel score
Dialed in for your goal
Carb energy
55g carbs
Glycemic profile
GI ~53 · GL 25.4
Fiber
7.1g
Protein
7.2g
Added sugar load
15.1g sugar
Make it better
  • Nicely balanced for this goal — this stack checks out.

Example stacks, scored

Three combinations and how they read for different goals.

Marathon-morning stack

100
Endurance fuel

Rolled Oats + Banana + Medjool Dates

Dialed in for your goal.

Steady desk snack

46
Steady energy

Apple + Almonds + Plain Greek Yogurt

Off-target — tweak the stack.

High-protein bite

31
High protein

Cottage Cheese + Almonds + Strawberries

Off-target — tweak the stack.

How the Fuel Check thinks

Carbs aren't good or bad in a vacuum — it depends on what you're fueling. We weight five signals differently per goal: carb energy, glycemic profile (GI & glycemic load), fiber, protein and added sugar. An endurance goal rewards fast, accessible carbs; a steady-energy goal rewards a low glycemic load and fiber. The score reflects fit, not calories — because a banana before a long run and a banana at your desk are two different decisions.

Frequently asked

How is the Fuel Score calculated?+

We total your stack's carbs, fiber, sugar, protein and fat, weight its glycemic index by carb content, and score the combination against goal-tuned targets — so the same snacks score differently for endurance vs steady-energy goals.

Why score the whole stack instead of one food?+

Because you snack in combinations. A high-GI food paired with protein and fat behaves very differently than on its own. The Fuel Check judges the real-world combination.

What makes a good endurance snack vs a steady-energy snack?+

Endurance fueling rewards accessible carbs and lower fat for fast energy. Steady energy rewards a low glycemic load and high fiber to avoid spikes and crashes. Same database, different targets.

Is this medical or dietary advice?+

No — it's an educational tool using reference nutrition data. For medical nutrition therapy, consult a registered dietitian or doctor.

As an Amazon Associate we earn from qualifying purchases. Some links are sponsored or paid placements; this never changes what we recommend.