75% of earth's population is lactose intolerant for a reason: dairy products are harmful...

Lactose intolerance is when the body does not produce enough lactase to break down lactose, a sugar found in milk and many other milk derived dairy products. The enzyme responsible for breaking down lactose is lactase, an enzyme found on the wall of the intestines. Lactase breaks down lactose (the sugar found in milk) into galactose and glucose. The activity of lactase becomes reduced after breastfeeding, at that point the body no longer needs as much lactase. Not to mention a human mothers milk is much different from the milk of a cow. The reduction of lactase activity after infancy is a genetically programmed event. Approximately 75 % of Earths population is lactose intolerant for a reason, that’s because it’s perfectly natural. The statistics vary from race to race and country to country but overall they show an abnormal amount of individuals who qualify. In some asian countries, 90 of the population is lactose intolerant. We are the only species on the planet that drinks milk from another species. Since lactase’s only function is the digestion of lactose in milk, most mammal species experience a dramatic reduction in the activity of the enzyme after weaning. Lactase persistence in humans has evolved as an adaptation to the consumption of non-human milk and dairy products consumed beyond infancy. Our diet has changed a lot, and as a result some of our genes have adapted, but it’s not an easy process. This is why most humans are lactose intolerant. Every other species weans and then never drinks milk again for the rest of their lives, and because of that we don’t have an enzyme to break down the sugar in milk. Full story...

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