Last week I attended a seminar put on by the American Dairy Association North East at my university. Every year they sponsor a speaker to come and talk about hot nutrition topics and how dairy is tied in with them as well. Topics in years past have been Sports Nutrition and Farming and Agriculture. This year's topic was Gut Health and Dairy. Before attending this seminar, I knew very little about the microbiome, probiotics and prebiotics; but after this session my knowledge and interest has grown exponentially. So, this week I decided that I wanted to share a little bit of this new knowledge with you!
Let's start with the Microbiome
- There are 10-100 trillion microbial cells in the skin, gut, mouth and feces. These cells have differ from person to person, and can vary depending on what environment we live in, as well as what type of environment the cells live in. Cells that live in the gut and are constantly exposed to gastric acids and juices are different from those that live on the skin or in the mouth. We actually get some of these microbial cells from our mothers when we are born, and there are 3 points within our lives in which the microbiome changes. First, when we start being breast fed, second is when we first develop a sickness that requires an antibiotic, and lastly is when we begin to eat solid foods. Some other things that can effect the gut microbiome is diet, exercise, stress, where you live, gender, age, and whether or not if you have a pet.
Microbiome and Health
- Studies have been able to show a connection between obesity, cognitive function, immune health, autoimmune disease, diabetes, gastrointestinal diseases, and the microbiome. One study showed that those who are obese have a significantly smaller amount of microbiomes in the gut than those who are at a healthy weight. They put the overweight people on a diet high in fiber and probiotics and saw that they experienced a loss of weight, as well as a more diverse microbiome. Another point I found interesting was that a study was done with children who were genetically at risk for developing Type 1 Diabetes. The researcher followed these children for 3 years and tested their mircobiome weekly for changes. After 3 years, 4 of the 33 children followed developed Type 1 Diabetes. The researcher saw a trend in the children that developed diabetes, they saw that one year before the onset of diabetes, there was a significant change in the microbiome which could help them predict the development of diabetes.
What are Probiotics?
- Probiotics are live cultures intended to have health benefits. Probiotics are part of the microbiome which can help with digestion, inflammation and disease prevention, by eating foods with probiotics we can make our microbiome more diverse.
What are Prebiotics?
- Prebiotics feed probiotics. They have been shown to be able to reduce inflammation, reduce diarrhea associated with antibiotic use, and lower the risk of cardiovascular disease.
Where can we get prebiotics and probiotics?
- Dairy is a great source of pre and probiotics, yogurt being one of the best of them. Kefir (shown above), which is a cultured milk product also is a great source of probiotics (shown to have 150-950 billion different probiotics) . It produced fewer symptoms of lactose intolerance than normal milk does, while containing the same amount of lactose. This is because Kefir contains cultures with the lactase enzyme in them. Some other sources of pre and probiotics are fermented foods, fruits and vegetables, kimchi, saurerkraut, miso, kombucha and tempeh
Next time you're at the grocery store in the dairy aisle, check the yogurt container and see if it says "Contains live cultures", if so, you're helping to increase and diversify your microbiome!
