My mother suffers from nervous hunger: often and willingly she sends me messages in which she says she has exaggerated by making snacks (often sugary, such as bread and jam or biscuits or ice cream), when as she gets older she already tends to get fat and shouldn’t. If you too tend to get fat and want a convenient snack or snack, the ideal is almost always to focus on protein snacks , which satiate more easily and in the end turn out to be cheaper than cookies, ice cream and rusks with jam. As an alternative to healthy snacks. 
And if you play sports, these are excellent alternatives between one meal and another:

PROTEIN SNACKS AND DIET SNACKS TO TRY (all the same or below a hundred calories)
– Eighty grams of pickled green olives: a good fat snack that keeps cholesterol at bay, nutritious and low carb. If you choose those in brine they are one hundred calories.
– Ninety grams of soaked lupins: the best protein snacks. 15 grams of protein and about 100 calories.
– Low-fat Greek yogurt with a teaspoon of honey: one hundred calories per 170 grams of fat-free Total Fage and about 10 grams of protein.
– Eighty grams of edamame: Japanese green beans are very tasty, just salt them a little. Eighty grams gives us one hundred calories and 8 grams of protein.
– One hundred grams of natural tuna:we can chop it with a teaspoon of mustard to get over 25 grams of protein. With a slice of wholemeal wasa that’s 135 calories, 100 if we only eat tuna.
– Dehydrated fruit without sugar: you can find apple or mango crisps on the market, less than a hundred calories per bag if you find those without sugar. Here. 
– Nori seaweed snack: a superfood with very few calories. You can find them here.
–  Soy milk pudding:very easy to prepare at home. Mix 100 ml of previously boiled soy milk and combined with 1 sheet of gelatin or other thickener with any flavor you can think of, a teaspoon of peanut butter or 10 grams of dark chocolate or pieces of dehydrated fruit without sugar, and then sweeten with stevia or erythritol to taste. Put the contents into a stencil. You can make more of them and keep them for 4 days. Each pudding will have at least 4 grams of protein and 50 calories.