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Milk types

What is raw milk?

Quick answer

Raw milk is milk that has not been pasteurized, meaning it has not been heated to kill germs. The FDA and CDC warn that it can carry disease-causing bacteria such as Salmonella, E. coli, Listeria and Campylobacter, and that children, older adults, pregnant women and people with weak immune systems are most at risk. Both recommend pasteurized milk.

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In this article
  1. What is raw milk?
  2. What germs can raw milk carry?
  3. Can you tell if raw milk is contaminated?
  4. Who is most at risk?
  5. Is raw milk more nutritious?
  6. How is raw milk different from pasteurized milk?
  7. Practical advice

What is raw milk?

Raw milk is unpasteurized milk, usually from cows but also from goats and sheep. Pasteurization is a heat treatment that kills harmful germs. Raw milk skips that step, so it can contain whatever germs came from the animal, the udder or the milking equipment.

What germs can raw milk carry?

The FDA says raw milk can contain disease-causing pathogens including E. coli O157:H7, Salmonella, Listeria monocytogenes and Campylobacter. The CDC also lists Cryptosporidium and Brucella. Symptoms can include diarrhea, stomach cramping and vomiting. The CDC says more severe outcomes such as Guillain-Barre syndrome or hemolytic uremic syndrome can occur in some cases.

Can you tell if raw milk is contaminated?

No. The FDA says there is no visual or sensory indicator of these pathogens, and standard quality tests do not reveal them. The CDC says good farm practices can reduce contamination but cannot guarantee safety from harmful germs.

Who is most at risk?

  • Children, including children under 5.
  • Adults over 65.
  • Pregnant women.
  • People with weakened immune systems.

These groups are at greater risk of serious illness or death from foodborne illness.

Is raw milk more nutritious?

The CDC says pasteurized milk offers the same nutritional benefits without the risks of raw milk, and the FDA says pasteurization has minimal impact on milk’s nutrition. We found no official source supporting claims that raw milk has special health benefits.

How is raw milk different from pasteurized milk?

Raw milk Pasteurized milk
Heat treated No Yes
Can carry harmful germs Yes Pasteurization is meant to kill them
Sale Varies by state Widely sold

Practical advice

Choose pasteurized milk and dairy products. If you do buy raw milk where it is legal, do not give it to young children, pregnant women or anyone with a weakened immune system. This is general information, not medical advice.

People also ask

Is raw milk safe to drink?

The FDA and CDC say it can carry disease-causing germs and recommend pasteurized milk instead.

Does raw milk have more nutrients than pasteurized milk?

The CDC says pasteurized milk has the same nutritional benefits, and the FDA says pasteurization has minimal impact on nutrition.

Who should never drink raw milk?

Children, adults over 65, pregnant women and people with weakened immune systems are at greatest risk.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. FDA: Raw Milk Misconceptions and the Danger of Raw Milk Consumption, read 6 Nov 2026
  2. CDC: Raw Milk, read 6 Nov 2026
Written by Drinks Type Editorial Team · Published Jul 14, 2025 · Updated Nov 6, 2026
About · How we verify this · Editorial policy · Corrections

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