I find it effective to take this with D3 before bedtime, which helps alleviate the symptoms of foot cramps during the night!
I have repurchased this many times. Combined with glucosamine, my grandmother's foot pain has significantly diminished!
A good formula, I purchased it based on reviews. My children, who are athletes, took it and their cramps disappeared. I will use this product again.
The elderly person in my family injured her foot, so I promptly bought this to supplement her with calcium. The recovery has been good.