Nadia,
I know abt tis Elken brand. I took their spirulina for yrs coz my mum takes oso & she is faithfully taking many yrs till now but I stopped liao coz I found very exp leh...$300 per bottle! Its a gd supplement anyway.
Now I'm taking folic acid, immunocal, COQ10 & Dr Zou medicine. If I take spirulina, will I overdose on top of current supplement tat I'm taking now?