Probiotics

Probiotic, which are usually beneficial bacteria, provide all sorts of powerful benefits for our body and brain. They may improve digestive health, reduce depression and promote heart health. Some evidence suggests they may even give you better-looking skin.
Probiotics are live microorganisms that are intended to have health benefits, when consumed, generally by improving or restoring the gut flora. 
Probiotics are considered generally safe to consume.
Getting probiotics from supplements is popular, but we can also get them from fermented foods.
Products sold as probiotics include dietary supplements, foods – kefir, yogurt, pickles… and products that aren't used orally, such as skin creams.
Many microorganisms help our bodies function properly. Bacteria that are normally present in our intestines help digest food, destroy disease causing microorganisms, and produce vitamins. Large numbers of microorganisms live in or on our bodies. Many of the microorganisms in probiotic products are the same as or similar to microorganisms that naturally live in our bodies.
Here is a list of some probiotic foods that are super healthy:
-      Kefir
Kefir is a fermented probiotic milk drink. It is made by adding kefir grains to cow's or goat's milk.
Kefir grains are not cereal grains, but rather cultures of lactic acid bacteria and yeast that look a bit like cauliflower.
The word kefir allegedly comes from the Turkish word keyif, which means - feeling good after eating.
-      Yogurt

Yogurt is one of the best sources of probiotics, which are friendly bacteria that can improve your health.
It is made from milk that has been fermented by friendly bacteria, mainly lactic acid bacteria and bifidobacteria.
Eating yogurt is associated with many health benefits, including improved bone health. It is also beneficial for people with high blood pressure.
In children, yogurt may help reduce the diarrhea caused by antibiotics. It can even help relieve the symptoms of IBS - irritable bowel syndrome.
Best is homemade.
Additionally, yogurt may be suitable for people with lactose intolerance. This is because the bacteria turn some of the lactose into lactic acid, which is also why yogurt tastes sour.
However, keep in mind that not all yogurt contains live probiotics. In some cases, the live bacteria have been killed during processing.
For this reason, make sure to choose yogurt with active or live cultures.
Also, make sure to always read the label on yogurt before you buy it. Even if it is labeled low-fat or fat-free, it may still be loaded with high amounts of added sugar.
Summary Probiotic yogurt is linked to a number of health benefits and may be suitable for people with lactose intolerance. Make sure to choose yogurt that has active or live cultures.
Kefir may improve bone health, help with some digestive problems and protect against infections.
While yogurt is probably the best known probiotic food in the Western diet, kefir is actually a better source. Kefir contains several major strains of friendly bacteria and yeast, making it a diverse and potent probiotic.
Like yogurt, kefir is generally well tolerated by people who are lactose intolerant.
Summary Kefir is a fermented milk drink. It is a better source of probiotics than yogurt, and people with lactose intolerance often can drink kefir with no problems.