Mavr Sports Nutrition Team
September 16, 2026. 10 min read.
You are running in 40 minutes. Lunch was five hours ago, you are a little hungry, and the last time you grabbed a protein bar before a run it sat in your stomach like a brick. What should you eat right now? A good pre-run snack solves a simple problem: give your blood sugar and liver a top-up without leaving anything in your stomach when you start.
This guide gives you the simple rule, 20 snacks sorted by how much time you have, picks for each type of run, and the healthy foods that are the wrong choice in this one window.
60 to 90 minutes
Carbs to aim for40 to 70 g (up to 1 g per kg)
Snack styleSmall solid snack. A little protein or fat is OK.
30 to 60 minutes
Carbs to aim for25 to 50 g (about 0.5 g per kg)
Snack styleSimple solid carbs. Almost no fat or fiber.
15 to 30 minutes
Carbs to aim for20 to 30 g
Snack styleSoft, fast foods: banana, dates, applesauce.
Under 15 minutes
Carbs to aim for15 to 25 g
Snack styleLiquid or gel only.
| Time before the run | Carbs to aim for | Snack style |
|---|---|---|
| 60 to 90 minutes | 40 to 70 g (up to 1 g per kg) | Small solid snack. A little protein or fat is OK. |
| 30 to 60 minutes | 25 to 50 g (about 0.5 g per kg) | Simple solid carbs. Almost no fat or fiber. |
| 15 to 30 minutes | 20 to 30 g | Soft, fast foods: banana, dates, applesauce. |
| Under 15 minutes | 15 to 25 g | Liquid or gel only. |
Three numbers keep you out of trouble in the last hour: under 5 g of fat, under 3 g of fiber, and under 10 g of protein. All three slow how fast food leaves the stomach, and a stomach that is still full when you start is what causes side stitches, sloshing, and nausea.
Bagel half with thin peanut butter and honey
Carbs45 g
Calories280 kcal
Good forLong runs, after-work sessions
Instant oatmeal made with water, plus a banana
Carbs55 g
Calories260 kcal
Good forMorning long runs
Low-fat yogurt with honey and a handful of cereal
Carbs40 g
Calories220 kcal
Good forEasy and steady runs
Two slices of white toast with jam
Carbs55 g
Calories260 kcal
Good forWorkouts and tempo runs
Small boiled potatoes with salt (200 g)
Carbs35 g
Calories160 kcal
Good forHot days, salty sweaters
| Snack | Carbs | Calories | Good for |
|---|---|---|---|
| Bagel half with thin peanut butter and honey | 45 g | 280 kcal | Long runs, after-work sessions |
| Instant oatmeal made with water, plus a banana | 55 g | 260 kcal | Morning long runs |
| Low-fat yogurt with honey and a handful of cereal | 40 g | 220 kcal | Easy and steady runs |
| Two slices of white toast with jam | 55 g | 260 kcal | Workouts and tempo runs |
| Small boiled potatoes with salt (200 g) | 35 g | 160 kcal | Hot days, salty sweaters |
| Snack | Carbs | Calories | Good for |
|---|---|---|---|
| One medium banana | 27 g | 105 kcal | Almost any run |
| White toast with honey or jam | 30 g | 140 kcal | Workouts |
| Two rice cakes with honey | 30 g | 130 kcal | Sensitive stomachs |
| Two fig bars | 22 g | 110 kcal | Easy runs |
| Small box of raisins (40 g) | 32 g | 125 kcal | Desk drawer backup |
| Pretzels, a large handful (30 g) | 23 g | 110 kcal | Hot days, adds sodium |
| Two graham cracker sheets | 22 g | 120 kcal | Easy runs |
| Low-fat cereal bar | 25 g | 130 kcal | On the go |
| One cup of low-fiber cereal, dry or with a splash of milk | 25 g | 110 kcal | Early mornings |
| Snack | Carbs | Calories | Good for |
|---|---|---|---|
| Two Medjool dates | 36 g | 130 kcal | Workouts, long runs |
| Half a banana with a drizzle of honey | 22 g | 85 kcal | Early mornings |
| Applesauce pouch | 15 g | 60 kcal | Nervous stomachs |
| 250 ml of orange or apple juice | 26 g | 110 kcal | When you cannot face food |
| Snack | Carbs | Calories | Good for |
|---|---|---|---|
| One energy gel with water | 22 to 25 g | 100 kcal | Workouts, races, long runs |
| 400 to 500 ml of sports drink | 25 to 30 g | 100 to 120 kcal | Hot days |
Carbohydrate eaten in the final 5 to 10 minutes reaches your blood once you are already running. There is no time for an insulin response, so there is no dip. This makes a gel at the door the safest late option for runners who feel shaky after eating sugar 30 to 45 minutes out.
Easy run under 45 minutes
Do you need a snack?Only if your last meal was 3 or more hours ago
Best pickBanana or nothing
Easy run, 45 to 75 minutes
Do you need a snack?Yes, a small one
Best pick25 to 30 g: banana, toast and jam, fig bars
Tempo or intervals
Do you need a snack?Yes
Best pick30 to 50 g, very low fat and fiber: toast and honey, dates, rice cakes
Long run, 90 minutes or more
Do you need a snack?Yes, on top of a real meal 2 to 3 hours before
Best pick40 to 60 g, then gels during the run
Morning run straight out of bed
Do you need a snack?For anything hard or over 60 minutes
Best pickHalf a banana, dates, or a gel at the door
After-work run
Do you need a snack?Almost always. Lunch was too long ago.
Best pick40 to 50 g at 3 to 4 pm: bagel half, toast, cereal bar
| Run | Do you need a snack? | Best pick |
|---|---|---|
| Easy run under 45 minutes | Only if your last meal was 3 or more hours ago | Banana or nothing |
| Easy run, 45 to 75 minutes | Yes, a small one | 25 to 30 g: banana, toast and jam, fig bars |
| Tempo or intervals | Yes | 30 to 50 g, very low fat and fiber: toast and honey, dates, rice cakes |
| Long run, 90 minutes or more | Yes, on top of a real meal 2 to 3 hours before | 40 to 60 g, then gels during the run |
| Morning run straight out of bed | For anything hard or over 60 minutes | Half a banana, dates, or a gel at the door |
| After-work run | Almost always. Lunch was too long ago. | 40 to 50 g at 3 to 4 pm: bagel half, toast, cereal bar |
Yes. It is the most popular pre-run snack for good reasons. A medium banana has about 27 g of carbohydrate, almost no fat, and around 3 g of fiber, and it comes in its own wrapper. Pick a ripe one with some brown spots. As a banana ripens, its starch turns into sugar, which makes it faster to digest and easier on the stomach. A green banana has more resistant starch and can cause gas. Eat it 20 to 45 minutes before the run. For sessions over 75 minutes, one banana is a start, not a plan: add toast or a gel, and fuel during the run.
A snack tops up the tank. It cannot fill an empty one. Sports nutrition guidelines suggest 1 to 4 g of carbohydrate per kg of body weight in the 1 to 4 hours before longer or harder sessions. For a 70 kg runner heading into a two hour long run, that is a real breakfast of 100 to 150 g of carbohydrate two to three hours before, then a small snack in the last hour. If your pre-run snack is the only thing you have eaten in six hours, the fix is an earlier meal, not a bigger snack.
A ripe banana, white toast with jam or honey, two dates, rice cakes with honey, or a low-fat cereal bar. Each gives 25 to 35 g of fast carbohydrate with almost no fat or fiber. Eat it 30 to 60 minutes before the run. With less than 15 minutes, use a gel or sports drink.
About 25 to 30 g of simple carbohydrate: a banana, a slice of white toast with honey, a small box of raisins, or two fig bars. Keep fat under 5 g and fiber under 3 g. Skip protein bars, nuts, and yogurt in this window.
Yes. A medium ripe banana has about 27 g of carbohydrate and digests quickly. Eat it 20 to 45 minutes before the run. Ripe bananas with brown spots are easier on the stomach than green ones. For runs over 75 minutes, add more carbohydrate and fuel during the run.
Not if you ate a meal in the last 3 hours. For an easy run under 45 minutes, your stored glycogen is plenty. If it has been more than 3 to 4 hours since you ate, or you feel hungry, a banana or a slice of toast will make the run feel better.
In a thin layer on toast or a bagel, 60 to 90 minutes before an easy or long run, yes. In the last 30 to 45 minutes, or before intervals and tempo runs, no. Peanut butter is mostly fat, which slows stomach emptying and can cause reflux or a heavy feeling at higher intensity.
When you are short on time and appetite, go small and soft: half a banana with honey, two dates, an applesauce pouch, or a glass of juice 10 to 20 minutes before you start. For a morning long run, get up 45 to 60 minutes earlier for toast and jam or instant oatmeal.
General guidance for healthy adults, not medical advice. Talk to a doctor or registered dietitian if you have a health condition, take medicines or have special dietary needs.
Mavr checks the run on your calendar, when you last ate, and how hard the session is, then tells you if you need a snack, how many carbs, and when to eat it.
Ask Kai, the coach in the app