Onions
Carb Check
- Carbs
- 5gCarbs
- Fiber
- 1.8gFiber
- Net Carbs
- 3.2gNet Carbs
- Carbs per Portion
- 1.5gCarbs per Portion
- Glycemic Index
- 15Glycemic Index
- Glycemic Load
- 0.2Glycemic Load
Legend
Color-coded system for nutritional impact: Use for food choices, especially for diabetes or low-carb diets.
Diet Check
- Low Carb
- No
- Keto
- No
- Carnivore
- No
- Paleo
- Yes
- Slow Carb
- No
- Vegan
- Yes
- Vegetarian
- Yes
- Low FODMAP
- No
pH Check
Nutrient Distribution per 100g
Onions
- Water91.0g
- Fiber1.8g
- Carbs5.0g
- Fat0.0g
- Protein1.0g
Advanced Nutrient Analysis
- Histamine
- Low
- Purine
- Low
- Tyramine
- Low
- FODMAP
- High
- Oxalate
- Low
- Goitrogen
- Not present
- Sulfite
- Not present
- Nitrate
- Low
- Antioxidants
- Moderate
Legend
For the antioxidant level, the scale is flipped. 1 (green) is a high antioxidant level, and 5 (purple) is a low antioxidant level.
Learn More
View all guidesNutrition Quiz
Compare nutrients • 10 quick questions
Onions are a staple in many cuisines, known for their flavor and low glycemic index. Although lower in certain minerals, their carbohydrate content is balanced by dietary fiber, securing their place in moderate low-carb diet plans.
- Low Glycemic Index: 15
- Carbohydrate Content: 5g per serving
- Contains Dietary Fiber: 1.8g per serving
- Low in Nutrients like Calcium and Potassium
- Minimal Sodium Content: 0.67% of the RDA
Is Onions keto?
Onions can be moderately included in a ketogenic diet. While having a slightly higher carb content relative to other keto vegetables, their low glycemic index helps maintain stable blood sugar levels when consumed in controlled amounts.
Carbohydrate Impact and Glycemic Index of Onions
The glycemic index of onions is 15, denoting a low impact on blood glucose. Combined with a small glycemic load, onions can fit into dietary plans aiming at blood sugar control, thus contributing modestly to overall carbohydrate management.
Vitamin Check
- Vitamin A (Retinol)
- 0
- Vitamin C
- 7
- Vitamin B1 (Thiamine)
- 0.03
- Vitamin B2 (Riboflavin)
- 0.02
- Vitamin B6 (Pyridoxine)
- 0.15
- Beta-Carotene
- 7
RDA percentages are based on EU reference values for adults (19-50 years) per 30g serving.
Mineral Check
- Sodium
- 8
- Calcium
- 20
- Iron
- 0.2
- Potassium
- 160
- Magnesium
- 10
- Phosphorus
- 30
- Zinc
- 0.2
RDA percentages are based on EU reference values for adults (19-50 years) per 30g serving.
Allergen Check
- Fructose
- Traces
- Lactose
- Not present
- Gluten
- Not present
- Soy
- Not present
- Shellfish
- Not present
Legend
Nutritional Information
| Nutrient | Amount (100g) |
|---|---|
| Calories | 32 kcal |
| Beta-CaroteneVitamin | 7 |
| CalciumMineral | 20 |
| CarbohydratesMacro | 5 |
| Dietary FatMacro | 0.001 |
| Dietary FiberMacro | 1.8 |
| IronMineral | 0.2 |
| MagnesiumMineral | 10 |
| PhosphorusMineral | 30 |
| PotassiumMineral | 160 |
| ProteinMacro | 1 |
| SodiumMineral | 8 |
| Vitamin A (Retinol)Vitamin | 0 |
| Vitamin B1 (Thiamine)Vitamin | 0.03 |
| Vitamin B2 (Riboflavin)Vitamin | 0.02 |
| Vitamin B6 (Pyridoxine)Vitamin | 0.15 |
| Vitamin CVitamin | 7 |
| WaterMacro | 91 |
| ZincMineral | 0.2 |
