Trusted calcium supplement, Jongkundang Calcium & Magnesium

Jongkundang Calcium & Magnesium is great. My mother has been taking it for many years and has seen significant effects. She is nearly 80 years old, but her joints are still very lively compared to her friends. So I am also taking it. In the past, it only contained calcium, but these days it also includes magnesium, vitamin D, and zinc, which I like even more. I was thinking of taking vitamin D separately, but it's nice that it's included together.