general info
Great informative article from Dr. Mercola, #1 natural health website.
Warns against commercial store-bought yogurt, which is all pasteurized in high temperatures with all beneficial bacteria killed.
http://probiotics.mercola.com/probiotics.html
Note that I suggest you to make your own probiotics instead of buying probiotic supplements. They're a whole lot cheaper, more effective, and obviously tastes a lot better than supplements. It is also incredibly easy to make your own fermented foods.
Some sites with instructions:
http://pennypantry.com/in-the-kitchen/recipes-in-the-kitchen/easy-probiotic-foods-healthy-cheap-homemade-sauerkraut/
http://www.probiotics-lovethatbug.com/fermented-cabbage.html
http://www.food-skills-for-self-sufficiency.com/making-sauerkraut.html
Warns against commercial store-bought yogurt, which is all pasteurized in high temperatures with all beneficial bacteria killed.
http://probiotics.mercola.com/probiotics.html
Note that I suggest you to make your own probiotics instead of buying probiotic supplements. They're a whole lot cheaper, more effective, and obviously tastes a lot better than supplements. It is also incredibly easy to make your own fermented foods.
Some sites with instructions:
http://pennypantry.com/in-the-kitchen/recipes-in-the-kitchen/easy-probiotic-foods-healthy-cheap-homemade-sauerkraut/
http://www.probiotics-lovethatbug.com/fermented-cabbage.html
http://www.food-skills-for-self-sufficiency.com/making-sauerkraut.html