Food, Activity and Recommendations Based On Glucose

Activity and Food

Walking is considered an excellent activity for most people with diabetes. Activity may lower glucose. If you take insulin or glucose-lowering pills, your blood sugar may get too low during or after an activity. It is important to snack on appropriate foods at the appropriate time. Please note, that for some people, certain activities may raise glucose levels temporarily. If this is the case for you, you do not have to have a snack before the activity.

photo of peanut butter toast with slices of banana

If a snack is needed, your snack should contain either starch or sugar.

If Your Glucose Is Normal Before The Activity…

If your glucose is normal before the activity, but usually drops once you start an activity, you should aim to have a snack that contains a starch before starting the activity. How many carbohydrates you need depends on:

  • Your glucose when you start the activity
  • If you are taking insulin, when was the last dose of your rapid-acting insulin
  • How long you plan on doing the activity for

Starch Plus A Protein Snacks

Examples of starch plus a protein snack with the correct portion size to eat or drink.

photo 1: 5-6 crackers and 1 ounce of cheese cubes
photo 2: 1 slice of bread or rice cake and 1 tablespoon of peanut butter
photo 3: 1/4 cup of cottage cheese and 1 cup of fresh fruit

Quick Carbohydrate Snacks

Here are examples of quick carbohydrates with the correct portion size to eat or drink.

photo 1: 1/2 cup of juice
photo 2: 1 cup of milk
photo 3: 1 small piece of fruit
photo 4: 1 cup of light yogurt
photo 5: 2 tablespoon of one small box of raisins
photo 6: three glucose tablets
photo 7: half cup of sugar-free pudding

Glucose, Activity and Snack Recommendation Table

This information is to be used as a guideline only. Everyone responds to exercise and food differently. Please discuss these recommendations with your physician.

Glucose LevelRecommendations for ActivityRecommended Snack Based on Length of Activity
(Hyperglycemia)
Lower than 100 mg/dL
Glucose may be too low to do activities safely.

Eat a snack before doing an activity.
Activity for 30 minutes or less
+ 1-2 carbohydrate choice(s) depending on glucose

Activity for about 1 hour –
2 carbohydrate choices plus protein

Activity for 2 hours or more –
Do not do activity until glucose is over 100. Eat 1 carbohydrate choice and recheck glucose. Repeat as needed
100 – 150
mg/dL
Safe glucose range for most
people to be active.

Eat a snack to prevent blood
sugar from dropping during
an activity
Activity for 30 minutes or less –
0-1 carbohydrate choice(s) depending on glucose

Activity for about 1 hour –
1-2 carbohydrate choice(s) depending on glucose

Activity for 2 hours or more –
2 carbohydrate choices plus protein
150 – 200
mg/dL
Safe glucose range for most
people to do an activity.

May need to eat a snack to
prevent glucose from dropping
during an activity.
Activity for 30 minutes or less –
No snack needed

Activity for about 1 hour –
0-1 carbohydrate choice depending on glucose

Activity for 2 hours or more –
Check glucose each hour. Eat carbohydrate choice, if needed, based on glucose
reading.
200 – 250
mg/dL
Safe glucose range for most
people to be active.

May need to eat a snack to
prevent glucose from dropping
during an activity
Activity for 30 minutes or less –
No snack needed

Activity for about 1 hour –
No snack needed

Activity for 2 hours or more –
Check glucose each hour. Eat carbohydrate choice, if needed, based on glucose reading.
250 – 300
mg/dL
Safe glucose range for most
people to be active.
Activity for 30 minutes or less –
No snack needed

Activity for about 1 hour –
No snack needed

Activity for 2 hours or more –
Check glucose each hour. Eat carbohydrate choice, if needed, based on glucose reading.
Over 300
mg/dL
Glucose may be too high to do an activity safely. Ask your healthcare provider what glucose range is safe for you

This site is for educational purposes only. Talk to your doctor or healthcare provider before making any decisions about your health.    

Resources

Blood Sugar Bookmark

Counting Carbs

Diabetes Guide

Healthy Snacks

Glucose, Activity and Food Recommendations

Blood Sugar Bookmark (Spanish)

Counting Carbs (Spanish)

Diabetes Guide (Spanish)

Healthy Snacks (Spanish)