# How to Choose the Right Probiotic for Your Body
The probiotic aisle overwhelms most parents. Shelf-stable versus refrigerated. Ten billion CFUs versus fifty billion. With prebiotics or without. The choices feel endless, and marketing claims don't always help.
Here's what matters: not all probiotics work the same way for every body. Your child's needs differ from yours. A probiotic that helps one kid with digestive issues may do nothing for another.
Start by identifying your goal. Are you addressing constipation, diarrhea, or general gut health? Different strains serve different purposes. Lactobacillus and Bifidobacterium are common genera, but within those live hundreds of specific strains. Some research supports specific strains for specific conditions. For example, certain Lactobacillus strains show promise for eczema in children, while particular Bifidobacterium species address constipation.
CFU count matters less than you think. A probiotic with 10 billion CFUs from a quality manufacturer beats a 100 billion CFU product from a brand with poor stability or dosing science. Look for third-party testing from organizations like NSF International or ConsumerLab. These certifications verify that the product contains what the label claims.
Stability determines effectiveness. Refrigerated probiotics maintain potency longer than shelf-stable versions, though some newer shelf-stable formulas perform well. Check expiration dates. A probiotic sitting on a warm shelf for six months loses live cultures.
Consider your family's specific needs. Children with food sensitivities, those taking antibiotics, or kids prone to digestive upset benefit from targeted strains. Ask your pediatrician which strains have research supporting your situation. Some pediatricians recommend starting with one strain to observe changes before adding multiple products.