Cashews occupy a slightly different position than other tree nuts in diabetes nutrition. The carbohydrate content is higher than almonds, walnuts, or pistachios — about 9 grams per ounce, compared with 4 to 8 in other nuts. About 6 grams of that comes from starch, which is essentially absent in most other tree nuts. This makes cashews slightly higher glycemic-load per serving, but the absolute amounts remain small and the overall profile is still diabetes-friendly. Cashews offer distinctive benefits: exceptional copper and magnesium content (both involved in glucose metabolism), versatility as both a snack nut and a culinary ingredient (cashew cream is a useful dairy-free alternative), and a mild flavor that suits many cuisines. For adults with type 2 diabetes, cashews fit easily into the daily nut rotation alongside other tree nuts.
Nutrition Profile
| Cashew form (serving) | Calories | Carbs (g) | Fiber (g) | Protein (g) | Fat (g) |
|---|---|---|---|---|---|
| Raw (1 oz, ~18 nuts) | 157 | 9 | 1 | 5 | 12 |
| Dry-roasted unsalted (1 oz) | 163 | 9 | 1 | 4 | 13 |
| Dry-roasted salted (1 oz) | 163 | 9 | 1 | 4 | 13 |
| Oil-roasted salted (1 oz) | 165 | 9 | 1 | 5 | 13 |
| Cashew butter (1 Tbsp) | 95 | 4 | 0 | 3 | 8 |
| Cashew cream (2 Tbsp) | 80 | 5 | 0.5 | 3 | 6 |
| Cashew flour (¼ cup) | 160 | 9 | 1 | 5 | 13 |
| Honey-roasted cashews (1 oz) | 170 | 14 | 1 | 4 | 11 |
| Cashew milk, unsweetened (1 cup) | 25 | 1 | 0 | 1 | 2 |
Glycemic Impact
Cashews produce a modest but measurable glucose response — slightly more than almonds or walnuts but still much smaller than most carbohydrate-containing foods. CGM users may see peaks of 5 to 15 mg/dL above baseline with a 1-ounce cashew snack, compared with essentially zero for almonds. The starch content (about 6 g per oz) drives this difference. For most adults with type 2 diabetes, the response is too small to be clinically meaningful.
Clinical Trial Evidence
- Mohan et al. (Journal of Nutrition, 2018): 300 Asian Indian adults with type 2 diabetes; 30g daily cashews for 12 weeks improved HDL cholesterol and reduced systolic blood pressure with no negative effect on glucose control.
- This trial directly addressed the concern about cashew carbohydrate by showing no glucose worsening over 3 months.
- Sauder et al. (2016): substituting cashews for high-carbohydrate snacks improved cardiovascular risk markers.
- Meta-analyses of mixed-nut interventions show similar but slightly smaller effects with cashews compared with almonds.
Copper and Magnesium
- Cashews are one of the highest food sources of copper — a 1-oz serving provides 62% of the daily target.
- Copper is involved in glucose metabolism, iron utilization, and connective tissue formation.
- Magnesium content is also high — 20% DV per oz.
- Magnesium deficiency has been linked to insulin resistance; adequate intake supports glucose control.
- Most adults in the US consume below-target magnesium; cashews are a convenient source.
- Zinc and manganese are also well-represented in cashews.
Mineral Profile
| Mineral (1 oz cashews) | Amount | % Daily Value |
|---|---|---|
| Copper | 0.6 mg | 62% |
| Magnesium | 83 mg | 20% |
| Manganese | 0.5 mg | 22% |
| Zinc | 1.6 mg | 15% |
| Iron | 1.9 mg | 10% |
| Phosphorus | 168 mg | 17% |
| Selenium | 5.6 mcg | 10% |
Cashew Cream — A Useful Diabetes-Friendly Substitute
- Soak 1 cup raw cashews in water for 2 to 8 hours (or quick-soak in boiling water 15 minutes).
- Drain, rinse, blend with 1 cup of fresh water until smooth.
- Adjust water for desired consistency (less = thick cream; more = creamy milk).
- Substitutes for heavy cream in soups, sauces, and dairy-free recipes.
- About 5 g carbohydrate per 2-tablespoon serving — slightly higher than heavy cream but much lower in saturated fat.
- Useful for adults with diabetes who are also lactose-intolerant or avoiding dairy.
- Keeps in the refrigerator 4 to 5 days.
Cashew Uses Across Cuisines
- Indian cuisine: cashew paste thickens curries (korma, butter chicken); whole cashews in pilaf and biryanis.
- Thai cuisine: cashew chicken stir-fry; cashews in pad Thai and curries.
- Chinese cuisine: cashew chicken; cashews in stir-fries.
- Vegan cooking: cashew cream replaces dairy in mac-and-cheese style sauces, alfredo, and frostings.
- Indian sweets: kaju katli (cashew fudge) — contains substantial sugar; not diabetes-friendly.
- Snack mixes: trail mixes, nut blends.
Cashews vs Other Nuts
| Nut (1 oz) | Calories | Carbs (g) | Fiber (g) | Protein (g) |
|---|---|---|---|---|
| Cashews | 157 | 9 | 1 | 5 |
| Almonds | 164 | 6 | 4 | 6 |
| Pistachios | 159 | 8 | 3 | 6 |
| Walnuts | 185 | 4 | 2 | 4 |
| Pecans | 196 | 4 | 3 | 3 |
| Peanuts | 166 | 6 | 2 | 7 |
| Brazil nuts | 187 | 3 | 2 | 4 |
The Cashew Plant Origin
- Cashews are technically the seeds of the cashew apple (Anacardium occidentale).
- The cashew “fruit” is a fleshy pseudofruit that’s eaten in Brazil and India but not commonly in US markets.
- Raw cashews from the tree are surrounded by toxic urushiol (same compound as in poison ivy); they require steaming or roasting before sale.
- The “raw” cashews sold in US stores have actually been minimally heat-treated.
- The fruit-and-seed combination is unusual among nuts.
Pairing Strategies
- 1 oz cashews + medium apple — balanced snack.
- Cashews + plain Greek yogurt + cinnamon.
- Cashew butter on celery sticks or rice cakes.
- Cashew chicken stir-fry with vegetables over cauliflower rice.
- Cashew cream as a heavy-cream substitute in tomato soup or alfredo.
- Cashew-and-coconut Thai curry with vegetables and chicken or tofu.
- Add a small handful of chopped cashews to grain bowls or salads.
Who Should Be Careful
- People with tree-nut allergy — cashews and pistachios cross-react; both are typically off-limits.
- People with chronic kidney disease — high phosphorus and potassium; portion-control with renal dietitian.
- People with very strict low-carb targets — cashews have 9 g carb per ounce vs 4 g for walnuts or pecans.
- People with poison ivy/urushiol sensitivity — commercial cashews are safe (heat-treated) but raw direct-from-tree cashews are not.
- People who substitute honey-roasted or chocolate-covered cashews — these have substantial added sugar.
Practical Patterns That Work
- Choose dry-roasted unsalted cashews for daily snacking.
- Pre-portion 1-oz bags for grab-and-go.
- Use cashew butter as an alternative to peanut or almond butter for variety.
- Make cashew cream for dairy-free soups, sauces, and dressings.
- Pair with fruit or whole-grain carbs to balance glucose response.
- Watch for added sugar in flavored cashews (honey-roasted, chocolate, candied).
- Vary among almonds, walnuts, pistachios, and cashews rather than relying on just one nut.
The Bottom Line
Cashews are diabetes-friendly despite having slightly higher carbohydrate than other tree nuts. A 1-ounce serving provides 9 grams of carbohydrate (mostly starch), 5 grams of plant protein, 12 grams of mostly monounsaturated fat, and exceptional copper (62% DV) and magnesium (20% DV) content. The Mohan trial in adults with type 2 diabetes showed that daily cashew consumption improved HDL cholesterol and blood pressure without negative effects on glucose control over 12 weeks. The glycemic impact is modest — slightly more than almonds or walnuts but still small in absolute terms. Cashew butter and cashew cream extend the diabetes-friendly uses across snacking, cooking, and dairy-free substitutions. Pair cashews with fruit or carbohydrate-containing meals for the best glucose response. For adults with type 2 diabetes who enjoy varying their nut intake, cashews belong in the rotation alongside almonds, walnuts, and pistachios. See our broader diabetes diet guide for the framework on nuts and healthy fats.
