Peanut Butter: Friend or Foe Before a Run?

Peanut butter has the energy of that mate who’s great craic in small doses but an absolute liability if you let things get out of hand. Delicious? Absolutely. Nutrient dense? Yep. But smear on too much before a run and suddenly your stomach feels like it’s hosting a tug of war.

So what’s the deal? Is peanut butter a reliable bit of pre-run fuel or a creamy sabotage waiting to happen?

Why Runners Love It

Peanut butter’s full of healthy fats, a bit of protein, and just enough carbs to make it useful. It’s calorie-dense, which means a small spoonful goes a long way, handy when you’re not up for eating a full meal but still need something to take the edge off that morning hunger.

It also sticks well to toast, bananas, bagels, rice cakes… or just your finger if you’re in a rush and dignity’s already out the window.

When It Goes Wrong

Peanut butter is slow to digest. That’s great if you’ve got a few hours before your long run. Not so great if you’ve got 22 minutes and you’ve just eaten half a jar on a bagel the size of your head.

Too much fat too close to your run can lead to nausea, heaviness, or the dreaded mid-run regret. You know the one, where you start seriously considering if that hedge up ahead is thick enough to hide behind.

Portion Size Matters

Think of it like this:

• One tablespoon? Grand.
• Two tablespoons? Risky.
• Straight from the jar while standing in your kitchen in your race kit? We’ve all been there. No judgement. But maybe rethink it.

Final Word

Peanut butter can absolutely be your friend, just keep it light and give it a bit of time to settle before lacing up. It’s not a race-day villain, but it’s definitely not a sprint-friendly food if you get greedy. Respect the spoon.