Walnuts — Nutrition & Calories
Walnuts per 100g: 654 cal · 15g protein · 14g carbs · 65g fat · 6.7g fiber. Highest omega-3 plant source with ALA, exceptional for brain and heart health.
Walnuts contains 654 calories per 100g serving — 15g protein, 14g carbs, 65g fat, 6.7g fiber, 2mg sodium. Per 100g: 654 calories. Vegan. Keto-friendly. Gluten-free. Highest omega-3 plant source with ALA, exceptional for brain and heart health.
Walnuts Macros (per 100g)
Walnuts Calories by Serving Size
| Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| 1 g (100g) | 654 cal | 15.0g | 14.0g | 65.0g |
| 100g | 654 cal | 15.0g | 14.0g | 65.0g |
| 200g | 1308 cal | 30.0g | 28.0g | 130.0g |
| 1 cup (~240g) | 1570 cal | 36.0g | 33.6g | 156.0g |
| 1 oz (28g) | 183 cal | 4.2g | 3.9g | 18.2g |
Burn Off Walnuts (654 calories) — Exercise Time
For a 154 lb (70 kg) person, time needed to burn 654 calories from Walnuts:
- Walking (3 mph)153 min
- Running (6 mph)54 min
- Cycling (moderate)71 min
- Swimming (moderate)89 min
Calculated from MET values per Compendium of Physical Activities 2024 (Ainsworth et al., updated from 2011).
Diet Compatibility
Frequently Asked Questions
How many calories are in Walnuts?
Walnuts contains 654 calories per 100g serving. That's 654 calories per 100g, or 1570 calories per cup (~240g). Calorie content varies based on preparation method.
What's the protein content in Walnuts?
Walnuts has 15g of protein per 100g (15.0g protein per 100g). Good protein source.
Is Walnuts keto-friendly?
Yes, Walnuts is keto-friendly. With 14g carbs and 65g fat per 100g, it fits within standard keto macros (under 20-50g carbs/day). Net carbs: 7.3g.
Is Walnuts suitable for vegans?
Yes, Walnuts is vegan. It contains no animal products. Often used in plant-based diets for protein.
What are the macros for Walnuts?
Per 100g: 654 calories, 15g protein (9% cal), 14g carbs (9% cal), 65g fat (89% cal). Fiber: 6.7g. Sodium: 2mg.
How much Walnuts should I eat to lose weight?
For weight loss, Walnuts fits a calorie deficit if portioned. A typical 500 cal/day deficit means Walnuts can comprise up to 76g as a snack, or paired with vegetables for a meal. Use our Calorie Deficit Calculator to determine your daily target.