I have recently started taking Magnesium Citrate from Mad Diet. I never expected it to make such a difference. I have had a lot of upper back pain together with neck and shoulder pain, literally for years, lately it had got so bad it was making me miserable. I have almost no pain in these areas after about 3 weeks of taking the Magnesium Citrate. I am over the moon, thank you. Can’t recommend highly enough.