I ve been trying to get on them but have had stomach issues due to the AC pill, cramping and loose stools. They said to take P5P with them (form of V B6).Cutting back on dosage only 2 at breakfast with P5P(50mg). Staying aay from the Strontium though. Actually, thinking abouth sending the all back and going back to taking D3 and eating more of calcium, hitting the gym. Meeting up with a dietition this week to show me how to get my calcium from more food naturally. Also going to pay a one time visit to a trainer to show me the correct weighting berring excersice to strengthen my back (ostopenia 1.0 of the spine).AlgaeCal has a web sight you can see on FB. So confusing, just going to do it the natural way and see what happens in another year. Good luck!