Calcium by itself does not cause acne breakouts. Dairy and milk do. Thus, the best thing, if you need to calcium is to take it as tablets keeping your cow's milk intake to a minimum.
More info on acne and food can be found here: https://www.mdacne.com/acne-and-food?utm_source=mdacne_blog&utm_medium=mdacne_blog&utm_campaign=every-time-i-have-milk-i-break-out-what-s-the-solution-do-vitamins-calcium-cause-breakouts-too?utm_source=mdacne_blog&utm_medium=mdacne_blog&utm_campaign=every-time-i-have-milk-i-break-out-what-s-the-solution-do-vitamins-calcium-cause-breakouts-too
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