Walnuts — Nutrition, Calories & Diet Check
Walnuts — 690 kcal, 15.0g protein and 7.0g carbs per 100g. Here's how it stacks up for keto, low-carb, high-protein, gluten-free and vegan snacking, with full typical nutrition per 30g serving.
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Some links below are affiliate links.
Nutrition: Walnuts (typical values)
| Per 100g | Per 30g serving | |
|---|---|---|
| Calories | 690 kcal | 207 kcal |
| Protein | 15.0g | 4.5g |
| Carbohydrates | 7.0g | 2.1g |
| of which sugars | 2.6g | 0.8g |
| Fat | 68.0g | 20.4g |
| Fibre | 6.7g | 2.0g |
| Salt | 0.0g | 0.0g |
Typical values for generic walnuts; brands vary — always check the label. For full per-food nutrition data see our sister site's calorie and nutrition checker.
Snack Picks
Is Walnuts keto-friendly?
Yes. With 7.0g of carbohydrates per 100g (2.1g per typical serving), walnuts fits comfortably within most ketogenic carb limits. For a UK-made option in this space, try MORiSH pork chicharrónes (79% protein, zero carbs).
Is Walnuts a good source of protein?
Yes — 15.0g of protein per 100g makes walnuts one of the better snack choices for protein. A 30g serving delivers about 4.5g. If you're stocking up, a snack portion pot set makes it easy to keep portions in check.
Sugar, salt and overall balance
Per UK traffic-light thresholds, walnuts is low in sugar (2.6g/100g) and low in salt (0.0g/100g), with 6.7g of fibre. At 690 kcal per 100g, portion size decides whether it fits your day. Portion control helps more than anything — some snackers keep a set of digital kitchen scales to hand for exactly that reason.
Curious what's actually in this kind of snack? Check additives and E-numbers with the food ingredient checker, and if you're pregnant or storing leftovers, our food safety guide covers what's safe.
More to Try
Last updated: · Typical values; check product labels