Nuts: walnuts, melon seeds, peanuts, pistachios, almonds, cashews, etc.

Fruits: apples, pears, bananas, sugar cane, longan, litchi, grapes, peaches, watermelons, cantaloupes, etc.

Other snacks: beef jerky, pork breast, dried longan, raisins, hawthorn slices, shredded squid, etc.

Of course, there are many healthy snacks, depending on what you want to maintain. O(∩_∩)O