Nuts on a diet?

I've been working out and eating healthy this summer and losing weight and I've always read that nuts ( in moderation) can help with belly fat, lessen cravings, and stabilise blood sugar. But when I eat them (a single or half serving) my blood sugar crashes if I dont include a small serving of carbs, like plain oats or something else healthy. Is this normal? I do have hypoglycemia but its well managed with eating healthy. Should I just eat half servings with a carb food?