Milk and Its Controversies

Milk and Its Controversies

Milk consumption is one of the most debated topics in modern nutrition. To understand this controversy, we need to look at history, science, and the fundamental differences between the milk our ancestors consumed and what we find on supermarket shelves today.

Historical Context

Humans have consumed milk from other mammals for approximately 9,000 years. For millennia, raw milk was a fundamental food for the survival of diverse civilizations. Entire populations thrived consuming fresh milk directly from cows, goats, or sheep.

Raw Milk vs. Pasteurized Milk

Raw Milk: A Living Food

Raw, fresh, unprocessed milk is a living food. It contains natural digestive enzymes (such as lactase, which aids in lactose digestion), beneficial bacteria, vitamins in their bioavailable form, and intact proteins. The lactoferrin present in raw milk has natural antimicrobial properties.

Pasteurized Milk: A Dead Food

Pasteurization, introduced in the 19th century, heats milk to high temperatures, destroying not only pathogenic bacteria but also all beneficial enzymes, natural probiotics, and altering the protein structure. The result is a white liquid that has lost most of its nutritional properties.

Pasteurized milk is essentially a dead food. The enzymes that would facilitate its digestion have been destroyed by heat.

The A1 vs. A2 Question

Not all milk is equal, even among cows of the same species. The difference lies in the beta-casein protein:

A1 Milk

Predominantly produced by modern breeds such as Holstein (the most common black-and-white dairy cow). The A1 protein, when digested, releases a peptide called beta-casomorphin-7 (BCM-7), which is associated with intestinal inflammation, digestive discomfort, and various adverse reactions.

A2 Milk

Produced by traditional and older breeds such as Jersey, Guernsey, Brown Swiss, and zebu breeds. The A2 protein does not release BCM-7 during digestion, making it significantly better tolerated, including by many people who consider themselves "lactose intolerant."

Where to Find Quality Milk

For those who wish to consume real milk, the website [realmilk.com](https://www.realmilk.com) is an excellent resource. It lists raw milk producers in various countries and offers research-based information about the benefits of unprocessed milk.

Final Considerations

Before completely eliminating milk from your diet, consider that perhaps the problem is not milk itself, but the type of milk you are consuming. Raw milk from A2 cows raised on pasture is a completely different food from the ultra-pasteurized milk of confined cows that we find on supermarket shelves.