Unsalted nuts, cereals, wheat biscuits, wholemeal biscuits. A good habit it to try to snack only 2 hours after your meal so that it regulates your sugar levels, even if you dont have GD now. So take your meal, 2 hours later snack, and then next meal at your usual timing, then 2 hours later snack again. Small meals more meals also help you to reduce the possibility of acid reflux and heartburn which is common in pregnancy. Low fat milk is also a good option. Choose unflavored ones, meaning avoid choc, strawberry flavoured ones. Dark chocs are okay too. Small amount is fine. With GD, my dr would also say that fruits should be kept as snacks and not together with a meal as the carbs from your meal and sugar content from the fruit will be a double spike in sugar levels.
Wholemeal crackers, rolled oats are actually recommended for GD diet. As long as you eat them as it is (don’t add jam or syrup etc) Fruits also can eat… just avoid fruits with high sugar content like durian, mango, grapes, lychee. Can do a quick google search and see what to avoid.
nuts! almond, macadamia