Apostate prophet is bloated; Quran unaware of milk allergy? Milk comes from blood?

In answer to the video "43 Scientific Mistakes in the Quran"

16:66 directs the audience to a process it can recognize using basic observation and deduction. It says the animal milk drank by humans comes from the batn of the animal. Batn means the hidden part, ie the inside of the animal's body. It then says this milk is something in between "farthin" and blood. f-r-th means the contents of the gut in process of digestion. It isnt speaking in terms of location, it doesnt say milk comes from between THE farthin and the THE blood. In the Arabic, there is no definite article. It is speaking in terms of substance.

Milk is a substance that is between gut nutrients and blood because it contains elements from both without being completely one or the other, and could not exist without the interraction between the 2. Again, the Quran is pointing to an observable phenomenon that isnt beyond common sense. The blood is involved because of the appearance of the udder full of veins and the farthin because it is the absorbed nutrients in the process of digestion.

And by the way, except for extremely rare cases, one isnt born lactose intolerant but becomes so due to the drop in production of lactase by the body as it adapts to a more varied diet that is less and less reliant on milk.

Also, the precise cause of food allergies is unknown, but emerging evidence suggests that the phenomena may be due to modern changes in diet, and the environement, such as excessive hygiene, widespread use of antibiotics, high-fat and low-fiber diets, reduced exposure to diseases, caesarian births and formula feeding, all being among the factors that have altered the beneficial relationship betweens humans and the bacteria living in the gastrointestinal tract.

Every microbiome carries with it different enzymes, which determines what kinds of food one can digest and how a diet interacts with one's health. It is known for example that the Westernization of the microbiome is associated with obesity. New studies have also demonstrated that the introduction of certain gut bacteria in food can actually reverse milk allergies in infants. A stark difference in gut-bacterial diversity and population has been noted between healthy and allergic individuals. The gut microbiota is a complex community of microorganisms that live in the digestive tract. Children are essentially born without microbes in their gut, and they are immediately colonized upon birth. 

Their gut microbiota is strongly affected by eventual breastfeeding duration and composition of the complementary diet. The next several years are critical in establishing a person's endogenous gut microbiota. Later in life, our own microbiota can change significantly from day to day, or even within hours, in response to what we've been eating. An interesting new study has shown that while depriving mice of dietary fiber greatly reduced their gut-microbial species diversity, this diversity was restored when the dietary-fiber restriction was lifted. But if this fiber deprivation was maintained for four generations, microbial species that had initially bounced back robustly became permanently lost. This could be a major cause of the sharp increase in human food alergies.