Causes of Weakness in Legs. Weakness in the legs can be caused by many conditions and diseases. Weakness means there is less strength in the muscles than there should be. Some people mistake fatigue as weakness, but technically in the medical world, they aren't the same. People with the flu or cancer, for example, may say they feel weak when they're referring to sluggishness.
1 (Outside of the body, Lactobacillus acidophilus is the probiotic that is found in some yogurts.). 2  Foods that contain probiotics include: some juices and soy drinks, fermented and unfermented milk, buttermilk, some soft cheeses, miso, tempeh, kefir, kim chi, sauerkraut, and many pickles.
Probiotics are natural, friendly bacteria you get when eating fermented foods like sauerkraut, yogurt, and fermented vegetables. People have been eating fermented foods for centuries without suffering any harmful side effects, quite the contrary.robiotics kill off the bacteria and this process has the side effect of diarrhea and other symptoms. Even though 12 days is longer than normal itâs not extreme in any way. I know some people that have done a thorough detox using probiotics and they got diarrhea, headache and other symptoms for several weeks.