Why is gelato unhealthy?

Could you elaborate on why gelato is often considered unhealthy? Is it due to its high sugar content, the use of artificial ingredients, or perhaps the portion sizes that are typically served? Are there any specific nutrients that are lacking in gelato, or are there healthier alternatives that one could opt for instead? Understanding the reasons behind gelato's unhealthy reputation can help individuals make more informed choices when it comes to their dessert options.