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.
Because they have been shown to support digestive health, supplementing with several strains of probiotics has been gaining popularity in recent years. However, many people donât realize that some foods contain probiotics naturally. Just as there are many strains of harmful bacteria, there is also a plethora of probiotic strains. Each type of beneficial bacterium plays a different supportive role in the body â thus, consuming a wide variety of probiotic foods provides the body with a formidable arsenal for maintaining gut health. Although this list is not absolute, below are 10 foods that contain gut-healthy probiotics. 1  Yogurt â Not all yogurts are created equally regarding probiotic content. 2  Miso â A staple of Japanese cuisine, miso is made from fermented rye, beans, rice or barley.