with probiotics, it’s not a question of which is better, but instead what is it best needed for. It’s like comparing lettuce and broccoli and asking which is better. Well, they’re both useful but each has a unique property that can assist with different health outcomes.
Lactobacillus reuteri DSM 17938 for example has quite a bit of clinical research in being an effective treatment for H Pylori infections in adults. It can also help with halitosis (bad breath), constipation, IBS, gum disease and dental caries. And in infants, it can help with colic, management of asthma symptoms, IBS/constipation, and much more.
It might be easier to let us know what you’re hoping to achieve with your probiotic, and perhaps we can help offer researched strains that can do so.