咖啡和牛奶一起喝會影響鈣的吸收嗎？

Does coffee have an effect on calcium?
Caffeine does produce a small increase in calcium excretion and a very small decrease in calcium absorption. But the body compensates by decreasing calcium excretion 2 to 3 hours later, so the net effect on calcium
is unchanged. Studies show that in moderation, drinking coffee has no
effect on bone health. In order to ensure stronger and healthier bones,
one should consume a diet adequate in calcium, providing 1000 mg/day for women 19-50 years.
Can we lose calcium if we drink coffee?
Each cup of coffee contains on average 60-120 mg of caffeine. Three hundred milligrams a day is the recommended intake of caffeine, roughly equivalent to 3-4 cups of soluble coffee.
Studies show that a cup of coffee causes a calcium loss of 2-4 mg, a negligible figure when compared to the amount of calcium in the diet (for example: 1 cup of milk has 300 mg, a 30 g slice of cheese has about 150-200 mg).
Can Coffee with milk help me get my calcium needs?
Adding milk to your coffee can indeed help you meet your calcium needs especially if you don』t like the taste of milk.
Milk is the best source of calcium; it has a very high calcium content: one cup contains about 300 mgs. The calcium in milk is easily absorbed. Additionally, milk contains vitamins A, D, B12, which are essential for bone health.
In a recent survey, when people were asked to list their dietary sources of calcium only 6% listed their morning latte as a calcium source. What is good to know is that adding a glass of milk to your morning coffee will help you get up to 300 mg of calcium that you did not think of in the first place.

咖啡因確實會小幅增加鈣的排泄，減少鈣的吸收。但是影響非常小，而且人體的補償機制會在2－3小時後恢復。喝咖啡要適量，同時應保障日常鈣的攝入量。
研究表明，一杯咖啡會導致2-4毫克鈣的流失，與日常飲食中的鈣含量（例如：1杯牛奶有300毫克，30克片的乳酪大約有150-200毫克）相比，這個損失可以忽略不計。
添加牛奶的咖啡的確可以幫助你滿足鈣的需要。