Flan makes an awesome dessert. Flan does contain high amount of calcium but the cholesterol and amount of sugar over powers the calcium benefits.
One serving (3.5 oz / 100g) of flan has close to 36 grams sugar. It is and seem quite high until you compare it with a can of soda which contains about 44g of sugar.
One serving (3.5 oz / 100g) of flan has 237 calories (68 calories from fat), 7.6g total fat (4.3g saturated fat), 75mg cholesterol, 108mg sodium, 277mg potassium, 36.3g total carbohydrates (36.2g sugar), and 7.3g protein.
One serving contains about 22 percent calcium (DV).