eli5: why is potato chips so high in calories but potatoes are relatively low?
In: Other
Potatos don’t contain fat and have 75% water. So 100g potato is actually just 25g of food.
Potato chips don’t contain water which already multiplies the calorie amount by 4. Also during the frying process 50% fat is added which drastically increases the calorie count.
Normal potatos contain 70kcal per 100g.
If you dry them, 100g potato have 280 calories.
And if you add 50% fat to it (50g) you have 280kcal + 50g × 9kcal = 730 kcal per 150g. (1g of fat contains 9 kcal)
Devide that by 1.5 and you have 490kcal/100g which is a really close estimate to the real calorie count of potato chips.
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