After spending approximately 40 weeks inside the womb, the average newborn weighs 7 1/2 pounds. Most babies weigh between 5 1/2 and 10 pounds. The average length of a newborn is 20 inches (50 centimeters), with a range of 18 to 22 inches. The average head circumference (the distance around the head) is 14 inches (35 centimeters).
Lactobacillus and Bifidobacterium are the most common probiotic bacteria. The Lactobacillus genus has 18 different bacteria strains, while the Bifidobacterium genus consists of eight strains.
Probiotics are live microorganisms (bacteria) normally found in the intestines. They are also sometimes called âgoodâ or âhealthyâ bacteria.There are more than 400 different types of healthy bacteria found in the digestive tract.It is thought that they help maintain a healthy digestive system and limit the growth of unhealthy bacteria.robiotics can be found naturally in some foods, including yogurt, soy milk, and sauerkraut. You can also find them added to many different snack foods and drinks. Look for labels that identify âlive active culturesâ or that include the full name of the bacteria on the nutritional label.