GI Score

72

GL/Serving

4

Net Carbs

10.4g

Diabetes Rating:

Watermelon

Quick Answer:

Watermelon is a refreshing summer fruit with high water content (92%) and natural sugars. While it has a high glycemic index (72), its low carb density results in a moderate glycemic load. Individual responses vary significantly, making careful monitoring essential for diabetics.

Last updated: 7/28/2025
Fresh watermelon

Nutritional Profile

Nutrition Facts

Serving Size: 1 cup diced (150g)

Servings per Container: Varies

Calories
46 2% DV
Total Carbohydrates
11 g 4% DV
Net Carbs
10.4 g
Dietary Fiber
0.6 g 2% DV
Sugars
9.4 g
Protein
0.9 g 2% DV
Total Fat
0.2 g 0

* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Glycemic Information

Glycemic Index 72 (High)
Low (≤55) Med (56-69) High (70+)
Glycemic Load 4
Low (≤10) Med (11-19) High (20+)

Risks & Considerations

  • High glycemic index but low glycemic load
  • Individual responses vary dramatically
  • Must pair with protein or healthy fats
  • Temperature affects absorption rate
  • Monitor portion sizes carefully

Preparation Tips

  • 💡 Pair with Greek yogurt or cottage cheese
  • 💡 Consume chilled for slower absorption
  • 💡 Limit to 1 cup serving
  • 💡 Eat as part of balanced meal
  • 💡 Choose less ripe watermelon when possible

Serving Recommendations

  • 🍽 Avoid: Watermelon juice or smoothies
  • 🍽 Avoid: Eating large portions alone
  • 🍽 Avoid: Very ripe or overripe fruit
  • 🍽 Avoid: Evening consumption
  • 🍽 Avoid: Multiple servings per day

Healthier Alternatives

Apple

GI 50 (Low)

Lower glycemic index (undefined)

Why it's better: Low glycemic impact
Glycemic Index Comparison Lower is better for diabetics
Original
Baseline
Alternative
50

Banana

GI 50 (Low)

Lower glycemic index (undefined)

Why it's better: Low glycemic impact
Glycemic Index Comparison Lower is better for diabetics
Original
Baseline
Alternative
50

Watermelon Ripeness & Blood Sugar Impact

Choose the right ripeness stage to minimize blood sugar spikes

Seedless watermelon

Most common variety with moderate to high GI

72

Glycemic Index

High GI

Check with healthcare provider

Taste:

Most common variety with moderate to high GI

Seeded watermelon

Lower GI than seedless, better for blood sugar control

50

Glycemic Index

Low GI

Check with healthcare provider

Taste:

Lower GI than seedless, better for blood sugar control

Yellow watermelon

Moderate GI, similar nutritional profile

65

Glycemic Index

Medium GI

Check with healthcare provider

Taste:

Moderate GI, similar nutritional profile

Less ripe watermelon

Lower sugar content, firmer texture

60

Glycemic Index

Medium GI

Check with healthcare provider

Taste:

Lower sugar content, firmer texture

Very ripe watermelon

Highest GI, use extreme caution

76

Glycemic Index

High GI

Check with healthcare provider

Taste:

Highest GI, use extreme caution

⚠️

Important Note

Individual responses to watermelon vary significantly. Some diabetics may experience blood sugar spikes even with the lowest glycemic options. Always test your personal response and consult with your healthcare provider.

Smart Food Pairings

Smart Watermelon Pairing Strategies

Reduce blood sugar spikes with these proven food combinations

Greek yogurt (3/4 cup)

3/4 cup

Reduces spike by 40-50%

Nutritional Contribution:

Protein: 0.9g Fat: 0.2g Carbs: 11g

How It Works:

Protein and fat slow gastric emptying and glucose absorption

Best Timing:

Eat together with watermelon

"Complete game changer for enjoying watermelon safely"

— Community Member

Scientific Basis: Protein and fat slow gastric emptying and glucose absorption

Cottage cheese (1/2 cup)

1/2 cup

Minimizes blood sugar rise

Nutritional Contribution:

Protein: 0.9g Fat: 0.2g Carbs: 11g

How It Works:

High protein content moderates glucose response

Best Timing:

Eat together with watermelon

"Classic combo that actually works"

— Community Member

Scientific Basis: High protein content moderates glucose response

Almond butter (2 tablespoons)

1 serving

Reduces spike by 30-40%

Nutritional Contribution:

Protein: 0.9g Fat: 0.2g Carbs: 11g

How It Works:

Healthy fats slow sugar absorption

Best Timing:

Eat together with watermelon

"Surprisingly good combination"

— Community Member

Scientific Basis: Healthy fats slow sugar absorption

Mixed nuts (1/4 cup)

1/4 cup

Moderates glucose response

Nutritional Contribution:

Protein: 0.9g Fat: 0.2g Carbs: 11g

How It Works:

Fat and protein create buffer effect

Best Timing:

Eat together with watermelon

"Portable option for picnics"

— Community Member

Scientific Basis: Fat and protein create buffer effect

Feta cheese (1 oz)

1 oz

Slows sugar absorption

Nutritional Contribution:

Protein: 0.9g Fat: 0.2g Carbs: 11g

How It Works:

Fat and protein combination

Best Timing:

Eat together with watermelon

"Makes a great summer salad"

— Community Member

Scientific Basis: Fat and protein combination

The Perfect Pairing Formula

1 cup diced (150g)

Pair with Greek yogurt or cottage cheese

Protein or Healthy Fat

Choose any pairing above

Reduced Blood Sugar Spike

Up to 40% improvement

Troubleshooting High Blood Sugar

Troubleshooting High Blood Sugar

Common challenges and proven solutions from the diabetic community

Still Having Issues?

Individual responses to this food vary significantly. If these solutions don't work for you:

  • • Consider avoiding this food entirely and choosing lower GI alternatives
  • • Test different preparation methods systematically
  • • Keep a detailed food and blood sugar log
  • • Consult with a registered dietitian who specializes in diabetes

Frequently Asked Questions about Watermelon

Common questions about Watermelon and diabetes

Is Watermelon good for diabetics?

Watermelon has a glycemic index of 72, making it a high GI food. It should be consumed carefully with portion control.

How much Watermelon can diabetics eat?

A typical serving size is 1 cup diced (150g), which contains 11g of carbs. Monitor your blood sugar response and adjust portions accordingly.

What is the glycemic index of Watermelon?

Watermelon has a glycemic index of 72, which is considered high. The glycemic load per serving is 4.

When is the best time to eat Watermelon?

Watermelon is best consumed before or after physical activity, or combined with protein and fiber to reduce blood sugar spikes.