PAWS & PATCH Green-Lipped Mussel Powder - dog supplements

We tried it for 10 days but my dog got diarrhoea. We stopped and her poo is back to normal. Zooplus should offer a trial pack, like 10g for 5 euros for example, so we can try it first, because now the money is just wasted and it's expensive to test it this way. FOR MY DOG IT'S NOT GOOD. Also be careful with salmon oil. Maybe something else is better for her joints. Thanks