Why Is Ice Cream Considered a Slow-Digesting Food?

消化开始在你的嘴，当你咀嚼你的食物。咀嚼物理破坏了食物分解成更小的颗粒进入你的消化道前。你的唾液还含有开始化学分解食物的酶。冰淇淋不需要任何咀嚼，所以这个阶段是在相当快。

一旦你咽下你的冰淇淋，它穿过你的食道到你的胃，在那里它与酸和酶，胃蛋白酶包括，盐酸，胃脂肪酶和内因子混合，根据科罗拉多州立大学。从那里转移到你的小肠，从肝脏，胰腺消化液和肠道继续打破它，解释National Institutes of Health。

Not all foods are broken down at the same rate. Simple carbohydrates, such as sugar and refined grains, are digested quite quickly. They are broken down into glucose, which is then sent into your blood stream to travel around your body. Complex carbohydrates that are higher in fiber, protein and fats are broken down more slowly and stay in the stomach for a longer period of time.

Read more:12 Ice Cream Secrets You Need to Know

Ice cream digestion time is slowed because of the milk digestion time.一个scoop of plain vanilla ice creamcontains 7 grams of fat and 2 grams of protein, according toUSDAdata. A scoop ofchocolate ice creamcontains a similar amount of fat and protein — 7 grams and 3 grams, respectively.

某些类型的冰淇淋可能有相当多的脂肪和蛋白质。一个rich vanilla ice cream含有17克的脂肪和4克每勺蛋白质。一个品种的ice cream含有花生酱的涟漪,豌豆nut butter cups and peanut flour has 17 grams of fat and 6 grams of protein. Nuts are high in both protein and fat, so ice creams containing them will be higher in both macronutrients and therefore digest more slowly.

一个ll food gets digested eventually, so why does it matter? There are two main reasons:

It affects your blood sugar:Foods that digest quickly — simple carbohydrates — cause glucose to flood the bloodstream. This causes a surge in energy that is quickly followed by a drop in energy when the glucose is depleted, leading to fatigue, explains the一个merican Heart Association。

它会影响您的胃口：慢消化的食物留在你肚子里长，这让你感觉更长更全面。胃扩张，当你的胃进食后膨胀，信号传递给大脑，你是充分和饱满。胃扩张也抑制一种叫做胃饥饿素的激素，刺激食欲的发行，根据刊登在一篇综述Journal of Nutrition and Metabolismin January 2019.

In general, choosing foods that digest slowly is better for your overall health and energy levels as well as weight management.

然而，仅仅因为食物需要更长的时间来消化，这并不意味着你应该吃它 - 或者至少不是很多。冰淇淋中含有丰富的饱和脂肪，这是在所有的动物性食物。按照一个merican Heart Association, this type of fat raises cholesterol levels and increases your risk of heart disease and stroke.

Ice cream is also high in sugar, the simplest carbohydrate of all. The fat and protein may slow the digestion, but sugar — especially added sugar — is bad for your health. Excess consumption of added sugar leads to体重增加和肥胖, which are major risk factors for cardiovascular disease and type 2 diabetes, warns theCenters for Disease Control and Prevention。

Combine that with the high fat content of ice cream, and you've got a calorie bomb that is sure to increase your waistline, regardless of how fast or slow it is digested.

Read more:16 Diet-Friendly Healthful Carbs