The hormone that is released when you eat ice cream is dopamine as well as serotonin and endorphins.
Dopamine is the reward hormone that is released when you eat ice cream and serotonin is the mood hormone that is released when you eat ice cream.
The dopamine, serotonin and endorphins that are released when you eat ice cream, activate pleasure centers in your brain and create feelings of happiness and well being, while also prompting the release in insulin and thirst signals or your FGF21 hormone.
These hormones are released and the pleasure center of the brain are activated due to the sugar and fat content of the ice cream.
Your brain's reward system releases dopamine, which is a neurotransmitter that is associated with pleasure, satisfaction and motivation, which makes you want to repeat the experience.
The carbohydrates in ice cream also help to boost serotonin, which is a hormone that promotes feelings of calmness, happiness as well as relaxation, which also helps to regulate mood.
Endorphins are natural painkillers and mood elevators, which can also be stimulated and contribute to feelings of euphoria and stress relief.
Insulin is released by your pancreas to move sugar from your bloodstream into your tissues.
FGF21 is a thirst hormone, which increases to combat dehydration from sugar consumption.
Ghrelin and Peptide YY are appetite controlling hormones which signal fullness, especially when you eat slowly.
Doctors also recommend that you eat ice cream in specific situations, like after dental surgery for its soothing cold and soft texture, or for patients that are needing easy-to-consume calories and nutrients for weight gain, as it provides calcium, protein, and energy, but it's generally considered a treat, not a health food, due to sugar and fat content.
The "benefits" of eating ice cream often come from moderation and specific nutrients like calcium and protein, not from regular large servings, which can be unhealthy.