Why is longan bad for you?

It increases your risk of heart disease and type 2 diabetes. There are no scientific studies on longan fruit and obesity. But its low calorie, fat, and carb counts make it a great substitution for sugar-laden processed foods in your diet that may lead to weight gain.

Do you need to refrigerate longan?

To help longan attain its maximum shelf life, keep it refrigerated all of the time in a sealed plastic bag or the crisp portion. To refrigerate longan, avoid keeping it with any other food because it will cause the longan fruit to lose moisture and its freshness consequently.