Is Spirulina good or bad for osteoporosis ?

[Gafrozio]

Hi, I'm 56 and male, and  due to Dexa mineralometry revealing a state of osteopoenia my doctor prescribed me Vitamin d3 supplementation (due to a bad deficency), urging me also  to adopt a more healty lifestyle and a proper  diet.  I wonder if Spirulina Platensis supplementation is really good for bones. On the web is quite usual to find the notion that Spirulina is good for bones , but  there is a study (https://www.ncbi.nlm.nih.gov/pubmed/16495651), that says the Spirulina decreases bone mass density, at least in the study and specimens conditions. So I'm quite confused...