No, humans were not originally "supposed" to drink milk as adults; it's a relatively recent adaptation, as most adults are naturally lactose intolerant. Drinking milk became widespread after a genetic mutation for lactase persistence evolved in some populations, allowing adults to digest milk, but this happened thousands of years after humans started consuming dairy from domesticated animals. Before this mutation, people consumed milk products like cheese and yogurt, or drank fresh milk despite digestive issues, because it provided vital nutrients, especially during times of famine.
For a long time, researchers believed that milk drinking evolved as a cultural practice hand in hand with the spread of genetic mutations that allowed people to tolerate milk into adulthood. But recent findings suggest milk drinking preceded these mutations, and might not even require them.
Worldwide, around 65% of adults are affected by lactose malabsorption. Other mammals usually lose the ability to digest lactose after weaning. Lactose intolerance is the ancestral state of all humans before the recent evolution of lactase persistence in some populations, which extends lactose tolerance into adulthood.
Gen Z isn't drinking as much milk due to health concerns (lactose intolerance, acne), ethical/environmental worries about dairy farming, the influence of social media promoting alternatives, increased awareness of dairy's downsides, and a desire for healthier, more personalized options like plant-based milks, though they still enjoy other dairy products like cheese and yogurt. They question traditional health advice and are swayed by peer culture and eco-consciousness, leading them toward alternatives for taste, values, and lifestyle fit.
The results suggest that as late as 5000 BC most ancient Europeans could not have digested milk as adults — and that they only later evolved into milk-drinking societies. Today, the ability to digest milk as an adult seems like a clear benefit, but that wasn't always the case.
For flavorings, there was mustard(Remember, Jesus' parable of the mustard seed in Mark 4:31), and dill, cumin, cinnamon, mint, and salt are also mentioned in the Bible. For drinking, Jesus probably drank water, wine, and milk (from goats and sheep).
Estimates for lactose intolerance vary by ethnicity. African American and Asian ethnicities see a 75% - 95% lactose intolerance rate, while northern Europeans have a lower rate at 18% - 26% lactose intolerance. For some people, drinking milk with their morning cereal is all the dairy they need for the day.
But do kids actually need to drink cow's milk? The short answer: It can be a good source of nutrients for growing children, but it's not the only way for kids to get the calcium, vitamin D and other essentials they need — and too much of it can actually do more harm than good.
Gen Z And The Sober Curious Movement
One study found that 34% of people in the Gen Z age group are making an effort to drink less, while 45% say they've never had an alcoholic drink in their lives. In contrast, only 36% of the millennial generation admit to never experimenting with alcohol.
Boys are more likely to drink milk than girls, who in turn are more likely to drink a juice (Park & Bae, 1999). However, relatively little is known about the effect of gender differences on beverage consumption patterns in elementary school children.
The former Disney Channel star tweeted that she has “a gluten and lactose allergy” on April 8 in response to accusations of an eating disorder. “It's not about weight it's about health,” she tweeted.
Over 90 percent of Asian-Americans are lactose intolerant, and it is least common among Americans with a Northern European heritage.
Abstract. Lactose intolerance occurs in about 25% of people in Europe; 50-80% of people of Hispanic origin, people from south India, black people, and Ashkenazi Jews; and almost 100% of people in Asia and American Indians.
Is that safe? Yup! As long as you're healthy (and HIV-free), there's nothing harmful in your breast milk. After all, it's made for human consumption, so it's fine to eat.
In Rome, due to the inevitability of spoilage, and because fresh milk was available only on farms, it was consumed mostly by the farmers' children and by peasants who lived nearby, often with salted or sweetened bread. This led to fresh milk's being widely regarded as a food of low status.
Most adult humans around the world are lactose-intolerant, meaning that, once they were weaned from breast milk, they gradually lost the ability to consume animal milk and certain other dairy products without having digestive problems.
Across much of the world, it is no longer middle-aged adults who are the most miserable. Instead, young people, especially Gen Z, are reporting the highest levels of unhappiness of any age group.
Whites have greater odds than Blacks, Hispanics, and Asians for either a past-year or lifetime alcohol use disorder. Native Americans have greater odds than Whites for lifetime alcohol dependence but similar odds for lifetime alcohol abuse and past-year alcohol abuse and dependence.
The major causes of alcohol-related death are alcohol poisoning, cancer, car accidents, heart failure, liver damage, and violence.
You might become less bloated
"This is due to the fact that many people lack lactase, the enzyme needed to properly digest cow's milk," explains Harju-Westman. "If you cut out dairy, you may find that your digestion improves, perhaps making you feel less bloated," the nutritionist suggests.
All humans can digest milk in infancy. But the ability to do so as an adult developed fairly recently, likely in the past 6000 years. A handful of mutations allows adults to produce the enzyme lactase, which can break down the milk sugar lactose.
Overall, the research team found that human milk was most often described as having a neutral, creamy, and sweet odor, mostly sweet and some bitter tastes, and a thin, watery, smooth, and fatty mouthfeel.
This study also showed that prepubertal children with LI were not shorter than normal controls. In fact, the obese LI subjects were taller than normal weight controls, and of similar height as the overweight/obese controls.
The lower prevalence in Ireland is due to a genetic trait that makes us efficient at digesting lactose, the naturally occurring milk sugar. This genetic trait, known as lactase persistence, is recognised as an 'evolutionary advantage', that arose in populations that farmed dairy animals.
But most people -- about 60 percent and primarily those of Asian and African descent -- stop producing lactase, the enzyme required to digest milk, as they mature. People of northern European descent, however, tend to retain the ability to produce the enzyme and drink milk throughout life.