Kefir: Where to Buy Online and In Store (2026 Guide)

What Is Kefir and Who Should Drink It?

Kefir is a fermented milk drink made by adding kefir grains to cow, goat, or sheep milk, producing a tangy, slightly effervescent beverage loaded with beneficial cultures. It originated centuries ago in the Caucasus Mountains, where shepherds discovered that fresh milk carried in leather pouches would ferment into a tart, drinkable product. Today, kefir contains up to 61 different strains of bacteria and yeast, making it one of the most microbiologically diverse probiotic foods available.

People who struggle with digestion, anyone rebuilding gut microbiota after a course of antibiotics, and health-conscious consumers looking for a nutrient-dense dairy product all benefit from adding it to their routine. It is also a strong option for those with mild lactose intolerance, because the fermentation process breaks down much of the lactose in milk. The World Gastroenterology Organisation lists fermented milk products like kefir among recommended cultured food sources for digestive health.

This page contains affiliate links. We may earn a commission at no extra cost to you.

What to Look For When Buying Kefir

The best option delivers live active cultures, balanced flavor, and minimal added sugar. Here is what separates a quality product from a mediocre one.

Live and active cultures. Check the label for named strains of Lactobacillus, Lactococcus, and Streptococcus thermophilus. Commercial products that list specific strains give you a clearer picture of what you are actually consuming. Pasteurized-after-fermentation products have fewer living organisms, so look for “contains live and active cultures” on the packaging.

Sugar content. The plain variety has around 8 to 12 grams of naturally occurring lactose per cup. Flavored varieties can spike to 20 grams or higher because manufacturers add sugar or fruit concentrates. Stick with the plain version and sweeten at home with fresh fruit if you want to control your intake.

Milk source and fat content. The version made from whole milk has a richer, creamier taste and delivers more fat-soluble vitamins like Vitamin D and Vitamin A. Low-fat versions work if you are counting calories, but full-fat options provide better satiety. Some brands use raw milk for a more traditional flavor profile, though availability depends on state regulations.

Kefir grains vs. powdered starter culture. If you plan to make it at home, real kefir grains (the cauliflower-like clusters of bacteria and yeast held together by a polysaccharide matrix called kefiran) produce a more complex fermentation than powdered starter cultures. Grains are reusable indefinitely. Powdered starters lose potency after a few batches.

Non-dairy alternatives. Water kefir and coconut milk varieties exist for people avoiding dairy. These dairy-free versions of kefir use a different type of grain and produce a lighter, less tangy drink with fewer protein grams but still deliver active probiotic bacteria.

Expiration and storage. This is a living product. Buy containers with the latest expiration date and store them at or below 40 degrees Fahrenheit. Product that sits at room temperature too long over-ferments and becomes unpleasantly sour.

Mistakes to Avoid When Buying Kefir

The most common mistake is grabbing a flavored bottle without reading the nutrition label. That single choice can triple your sugar intake per serving.

Confusing kefir and yogurt. These two are both fermented dairy products, but they are not interchangeable. Yogurt typically contains 2 to 3 bacterial cultures. The fermented version may contain 30 or more strains of bacteria and yeast. It also includes beneficial yeast species that yogurt does not, which supports a more diverse gut microbiota. Both are good choices, but the fermented beverage delivers broader microbial variety.

Ignoring CFU counts. Some commercial products list colony-forming unit counts on the label. Low CFU products went through aggressive processing that killed off live cultures. A quality option should deliver at least 1 billion CFUs per serving.

Buying from unrefrigerated shelves. Shelf-stable drinks exist, but most have been heat-treated to extend shelf life, which destroys the live beneficial organisms that make this fermented milk valuable. Always buy from the refrigerated section unless you are specifically purchasing grains for home brewing.

Assuming all brands are equal. Lifeway Kefir, the largest brand in North America, uses a proprietary blend of 12 live and active cultures. Smaller artisan producers may use traditional kefir grains with a wider spectrum of microorganisms. The health benefits vary depending on which strains survive to the bottle.

Where to Buy Kefir In Store

Most major grocery chains stock it in the dairy aisle next to yogurt and buttermilk. Here are your best options for finding it locally.

Walmart

Walmart, the largest brick-and-mortar retailer in the U.S., carries multiple brands in its refrigerated dairy section. You will typically find Lifeway products in plain, strawberry, and mixed berry flavors alongside store-brand options. Prices usually run between $3 and $5 for a 32-ounce bottle. Check the dairy aisle, not the health food section. Browse their selection.

Whole Foods and Health Food Stores

Health food stores carry a wider range of products, including organic, grass-fed, and non-dairy varieties. Whole Foods typically stocks brands like Maple Hill (100% grass-fed) and local artisan producers you will not find at conventional grocers. Expect to pay $5 to $8 per bottle for premium options. Staff can usually point you to grains for home production as well.

Target, Kroger, and Other Grocery Chains

Target carries this fermented drink in its dairy section, and Kroger offers both national brands and their own Simple Truth organic line. Call ahead if you need a specific variety, because smaller locations may only carry one or two flavors. If you are interested in similar fermented dairy products like yoghurt, most of these stores stock them in the same aisle.

Where to Buy Kefir Online

Online shopping gives you access to bottled products, starter cultures, and live kefir grains that most local stores do not carry.

Amazon

Amazon stocks bottled options from Lifeway, Maple Hill, and several smaller brands, plus live kefir grains and powdered culture starters for making homemade batches. Prime members get free two-day shipping on most items. Subscribe-and-save discounts drop the price another 5 to 15 percent on recurring orders. Shop on Amazon #ad.

Cultures For Health

Cultures For Health specializes in fermentation supplies and sells both milk and water grains for fermentation with detailed instructions. Their site includes dozens of recipes and how-to videos for making batches at home. Orders above $40 ship free. One of the better resources if you want to produce your own fermented milk on a regular basis rather than buying bottled. Visit their fermentation supply section.

Body Ecology

Body Ecology offers starter kits starting around $27, along with educational content about the role of fermented foods in gut health. Free shipping kicks in at $50. They focus on the connection between regular consumption and overall digestive wellness, which makes their product pages useful beyond just the purchase. See their products.

Brand-Direct Websites and Store Locators

Several manufacturers sell direct through their own websites. The Evolve brand has a store locator that helps you find nearby retail locations, and Lifeway lists every retailer carrying their products. Buying direct sometimes unlocks bundle deals or subscription pricing. For related health supplements, you can often find them from the same specialty retailers.

Buying in Canada

Canadian buyers can order water kefir grains and milk kefir grains through waterkefir.ca, which also ships internationally. Major Canadian grocers like Loblaws and Metro stock Lifeway and local brands in their dairy sections.

Top Kefir Picks for Different Needs

These picks are based on culture diversity, flavor, nutritional profile, and verified buyer feedback across major retailers.

Best overall: Lifeway Organic Plain Kefir. Twelve live and active probiotic cultures, 11 grams of protein per cup, and no added sugar. The tangy flavor works straight or blended into smoothies. Around $4 to $6 for 32 ounces. Check price on Amazon

Best for homemade batches: Cultures For Health Milk Kefir Grains. Live grains that multiply with each batch of kefir, giving you an indefinite supply. One packet ferments about a quart of milk every 24 hours. Expect the first two batches to taste mild while the grains activate. Around $20 to $25. Check price on Amazon

Best budget: Kroger Simple Truth Organic. A solid everyday option with live cultures at roughly $3.50 per 32-ounce bottle. Available in most Kroger-family stores (Ralphs, Fred Meyer, King Soopers). The plain variety keeps sugar low while delivering calcium and protein.

Best dairy-free: Forager Project Cashewmilk Kefir. Made from organic cashew milk with added probiotic cultures. Good option for anyone avoiding dairy but still wanting the gut benefits of a fermented beverage. Around $5 to $7. Check price on Amazon

Best for sugar-water fermentation: Florida Sun Water Grains. For those who prefer a lighter, non-dairy fermented drink. These grains feed on sugar water instead of milk, producing a mildly sweet, fizzy beverage rich in probiotics. Around $12 to $18. Check price on Amazon

Kefir FAQ

Is kefir better than yogurt for gut health?

This fermented drink typically contains a wider range of beneficial strains than yogurt. Most yogurt has 2 to 3 bacterial cultures, while this fermented milk can contain 30 or more strains of bacteria and yeast. It also includes beneficial yeast species that yogurt does not, which supports a more diverse gut microbiota.

Can people with lactose intolerance drink kefir?

Many people with lactose intolerance tolerate this fermented drink better than regular milk. The lactic acid bacteria break down a significant portion of the lactose during fermentation, reducing the amount your body needs to process. Start with a small serving (4 ounces) and increase gradually.

How much should you drink per day?

One to two cups daily is the most commonly recommended amount. Drinking it can help support immune system function and digestive regularity at that level. If you are new to fermented foods, start with half a cup and work up over a week or two.

Does kefir need to be refrigerated?

Yes. Bottled product must stay refrigerated at or below 40 degrees Fahrenheit to keep the live cultures active. Grains stored between batches should also go in the fridge, submerged in fresh milk, where they stay dormant until you are ready to ferment again.

Can you make kefir at home without special equipment?

Homemade batches require only kefir grains, milk, a glass jar, and a breathable cover like a coffee filter or cloth. Add about a tablespoon of grains to a quart of milk, cover the jar, and leave it at room temperature for 18 to 24 hours. Strain out the grains and your fresh batch is ready.

Who should not drink kefir?

People with severe milk allergies (not lactose intolerance, but actual casein or whey allergies) should avoid milk-based varieties entirely. Anyone with a compromised immune system should consult a doctor before consuming culture-rich foods. Pregnant women should stick to pasteurized commercial products and avoid raw milk versions.

Our Editorial Process

Reviewed by the wheretobuyguides.com editorial team. Content on fermented foods and probiotic products is reviewed with guidance from published nutrition research and peer-reviewed studies on kefir and its health benefits. Last updated: April 2026.