Why is milk kinship prohibited marriage?

Why does Islam prohibit marriage between milk kinship?

The marriage between milk kinships is strictly prohibited in the Qur’an. At first glance, the prohibition of marriage because of only a certain amount of breast milk seems strange. But this ban is not only a religious taboo, but also a scientific fact.

Breast milk is the main nutrient in the development of infants and some of the substances in the baby’s immune system strengthens and provides protection from the disease. Until recently, this is what we know about breast milk. But recent scientific studies have revealed that breast milk is a function of genetic transmission.

As explained in the Qur’an (Surah An-Nisa), nursing children from a woman are related to the breastfeeding woman and at the same time, those who share the milk are now accepted as brothers and this is a relationship that prevents future marriage. This was previously considered a religious taboo, but it has now turned out to be a miracle of the Qur’an.

Breastfeeding from the same woman leads to kinship through genetic transfer among individuals even if there is no blood relationship. So, babies who are sucking milk from the same woman are really becoming siblings. What was ordered by the Qur’an thousands of years ago is now scientifically proven.

An- Nisa 23: ” Prohibited to you [for marriage] are your mothers, your daughters, your sisters, your father’s sisters, your mother’s sisters, your brother’s daughters, your sister’s daughters, your [milk] mothers who nursed you, your sisters through nursing, your wives’ mothers, and your step-daughters under your guardianship [born] of your wives unto whom you have gone in. But if you have not gone in unto them, there is no sin upon you. And [also prohibited are] the wives of your sons who are from your [own] loins, and that you take [in marriage] two sisters simultaneously, except for what has already occurred. Indeed, Allah is ever Forgiving and Merciful.”

Scientific explanation of the marriage among relatives of milk :

According to scientific studies, the genetic code of the baby is rewritten with the milk sucked from another woman, and the DNA of the nursing woman changes the DNA of the baby.

A structure similar to retroviruses was found in breast milk in 1970s. This structure was called microvesicle but could not be determined exactly what it works for. Even though it was thought that it might be related to breast cancer in those years, no relationship could be found.

The function of microvesicles, which could not be understood for years, was only detected in the 2000s.

Mother breast epithelial cells form a structure called milk fat globules (Milk Fat Globul = MFG). Microvesicles are secreted through these globules and through the breast epithelial cells. The most important feature of these microvesicles is that they contain the reverse transcriptase in retroviruses and the mRNA that will be used as a template. In other words, these microvesicles, which look like viruses, act as retroviruses.

What do microvesicles do?

Microvesicles goes into the baby’s stomach with breast milk. The stomach is extremely acidic. However, these microvesicles are so durable that they do not break down in stomach acid. The mRNA and the reverse transcriptase enzyme (a kind of protein) in them would be subdivided and these sub-parts would pass into the blood. Thus, these microvesicles would not have a function.

Microvesicles reach the intestine in the stomach without breaking up. The size of these microvesicles is about 55 nm. Since they are smaller than 60 nm, they are transferred from the intestines to the blood via a way called caveolar endocytosis. The microvesicles pass through the caveolar endocytosis to the target cells of the baby and pass the mRNA and reverse transcriptase enzyme into the endoplasmic reticulum. Microvesicles from here to the nucleus of the cell. The Revers transcriptase enzyme makes up the DNA and writes the new gene using the mRNA from the mother’s milk as a template for both strands of DNA. These microvesicles are called milk transcriptome. Thus, breast milk changes the baby’s genes.

These genes are approximately 14,000 and these are active genes. That is, a nursing woman transfers her genes to her offspring, even if she is not a child she is breastfeeding. So the breastfeeding mother is really the mother. As An-Nisa 23 says: ”An your [milk] mothers who nursed you, your sisters through nursing”. At the same time, this mother’s children and the child they are breastfeeding are really brothers.

As a result, a very important situation arises. You breastfeeders are in any case your genetic mother. The children of the women who breastfeed you are truly your genetic brothers.

Thanks to the milk mother, some metabolic diseases can be treated. Let’s explain this with an example. A woman is a carrier of metabolic diseases and is unaware of it. She gave birth to a child and the born child was diagnosed with a metabolic disease. If this child is breastfeeded by a woman with healthy genes, the sick genes will be replaced by the intact genes of the mother and thus the metabolic disease of the baby will be treated.

A child should be breastfed by a woman only. If more than one woman breastfeeds the child, both genes are written to the baby. Therefore, the balance between cells is disrupted.

In Western countries they are opposed to cousin marriage, but they are not aware of the fact that they set up milk banks and cause the brothers to marry.

God knows best of everything.


1. Mochizuki K, Kawai H, Mochizuki H, Shimada M, Takase S, Goda T. Fatty acids in component of milk enhance the expression of the cAMP-response-element-binding-protein-binding protein (CBP)/p300 gene in developing rats. Br J Nutr. 2008;99:481–486. [PubMed]

2- Niers L, Stasse-Wolthuis M, Rombouts FM, Rijkers GT. Nutritional support for the infant’s immune system. Nutr Rev. 2007;65(Pt 1):347–360. [PubMed]

3- McGregor JA, Rogo LJ. Breast milk: an unappreciated source of stem cells. J Hum Lact. 2006;22:270–271. doi: 10.1177/0890334406290222. [PubMed] [CrossRef]

4- Haas DM, Daum M, Skaar T, Philips S, Miracle D, Renbarger JL. Human breast milk as a source of DNA for amplification. J Clin Pharmacol. 2011;51:616–619. doi: 10.1177/0091270010370847. [PMC free article] [PubMed] [CrossRef]

5- Agarwal S, Karmaus W, Davis S, Gangur V. Immune markers in breast milk and fetal and maternal body fluids: a systematic review of perinatal concentrations. J Hum Lact. 2011;27:171–186. doi: 10.1177/0890334410395761. [PubMed] [CrossRef]

8 thoughts on “Why is milk kinship prohibited marriage?

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    1. i am not medical student so, is this true or just hypothesis? and if it is true can you please sent me a link of medical reference .Thanks in advance

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