Which Cheese Has the Least Lactose? An Intolerance Guide

The best cheese for lactose intolerance is a hard, aged one: Parmesan, Swiss-type cheeses such as Emmental and Gruyère, aged cheddar and Pecorino Romano usually test below 0.1 g of lactose per 100 g^[1][2]. Most adults with lactose intolerance tolerate about 12 g of lactose at once, the amount in a cup of milk^[3][4].

Fresh, wet cheeses are the ones that cause trouble. Cottage cheese, ricotta, cream cheese, mascarpone and processed cheese slices keep far more of the milk sugar^[2].

This page covers a lactose chart by cheese type, why "aged" is not a guarantee, how yogurt compares, and whether gut bacteria adapt to regular dairy. For the condition itself, including symptoms and testing, see our lactose intolerance and gut microbiome guide.

Is cheese OK if you are lactose intolerant?

Yes, for most people, as long as you choose the right type. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) suggests trying hard cheeses like cheddar or Swiss because they are lower in lactose than other milk products^[5]. It also notes that most people with lactose intolerance can have some lactose without symptoms^[5].

Cheese is low in lactose because of how it is made. About 98% of the lactose in milk leaves with the whey or is turned into lactic acid during cheesemaking, and the little left in the curd is used up early in ripening^[6]. Starter bacteria do most of that work. An Italian lab study names Streptococcus thermophilus, Lactobacillus bulgaricus and Lactococcus lactis as the main lactose-fermenting cultures^[1].

How much lactose triggers symptoms varies from person to person. It depends on how much lactase you still make, how fast food moves through your small intestine and, above all, how much lactose you eat^[7]. Some people react to under 6 g, while most tolerate up to 12 g as a single dose^[4].

Cheese lactose chart: what are the lactose contents of different foods?

Hard cheeses carry a tiny fraction of the lactose in milk, while fresh cheeses can carry several grams per serving. The table uses per-100 g values from a 2025 NHS dietetic guide and an Italian lab analysis. We converted them to typical servings, so treat the serving column as an estimate.

Ricotta and cream cheese spreads also fall in the high-lactose group, over 2 g per 100 g, though the NHS guide gives no single figure^[2].

Which cheese has the least lactose?

Long-aged hard cheeses have the least: in lab testing, Parmigiano Reggiano, Grana Padano, Emmental, Gruyère, Comté, Jarlsberg and certain mature cheddars had lactose below what instruments could detect^[8][9][1]. Here is the ranking, lowest first.

1. Parmigiano Reggiano and Grana Padano

A UK analysis of 109 cheese samples over six years found no detectable lactose in Parmigiano Reggiano or Grana Padano, block or grated^[8]. An Italian study using sensitive methods (detection limit under 10 mg per kg) confirmed this for 12-month Parmigiano Reggiano and 9-month Grana Padano^[1].

2. Swiss-type cheeses: Emmental, Gruyère, Comté, Jarlsberg

Gruyère, Emmental and Jarlsberg all had undetectable lactose in the UK analysis^[8]. Every Comté sample in a follow-up study was below the detection limit^[9]. Comté, Gruyère and Emmental also met the strict galactose cut-off in a 2023 Spanish analysis^[10].

3. Aged cheddar

Cheddar is listed at 0.1 g of lactose per 100 g in the NHS guide^[2]. Five mature cheddar brands tested in the UK stayed consistently under 10 mg of lactose and galactose per 100 g^[9]. But not every mature cheddar tested that low, which the next section covers^[8].

4. Pecorino Romano and other aged sheep cheeses

Pecorino Romano, Pecorino Sardo, Pecorino Siciliano and Fiore Sardo were all below the detection limit^[1]. Sheep's milk itself has slightly more lactose than cow's milk, at 5.1 g per 100 g, so the low result comes from the aging, not the animal^[2].

5. Blue cheeses: Gorgonzola and similar

Both mild (dolce) and sharp (piccante) Gorgonzola tested below the detection limit^[1]. The NHS guide lists blue cheese at 0.1 g per 100 g^[2].

6. Brie, Taleggio and other soft-ripened cheeses

Brie and Taleggio were below the detection limit in the Italian analysis^[1]. The NHS guide lists brie under 0.1 g per 100 g but puts "ripe or rind" cheeses as a group at 0.9 g, so values vary by product^[2].

7. Mozzarella, feta, halloumi and goat cheese

These sit in the low-lactose group, between 0.1 and 1.4 g per 100 g^[2]. Fresh buffalo mozzarella had about 3,540 mg per kg (0.35 g per 100 g) in the Italian study, the highest of any cheese tested there^[1]. That is still roughly 0.1 g per ounce.

Goat's milk has about as much lactose as cow's milk (4.4 g vs 4.6 to 4.8 g per 100 g), so goat cheese is not automatically easier^[2]. The same rule applies to every cheese: aging lowers lactose, and the animal does not.

Why "aged" does not always mean lactose-free

Aging helps, but it is not a guarantee. In the six-year UK study, only mature cheddar from one group of West Country farmhouse makers was consistently lactose-free. Other mature cheddars, Gouda and Edam still contained measurable lactose^[8].

A Spanish analysis of 32 cheeses reached a similar conclusion. Only 5 of 19 Spanish cheeses met its galactose cut-off, and the authors note that mature cheeses do not always have lower galactose^[10].

Time still matters within one cheese. Pecorino Toscano had 336.8 mg of lactose per kg at 20 days, 28 mg at 60 days, and none detectable at 4 months^[1]. The Italian authors recommend checking each product rather than assuming, because production conditions vary^[1].

In practice, these traces are tiny next to a 12 g tolerance^[4]. Batch-to-batch variation matters mainly if you are very sensitive.

Which cheeses are worst if you are lactose intolerant?

The worst choices are fresh, unripened and processed cheeses. The NHS guide places cottage cheese (3.5 g per 100 g), processed cheese (6.5 g), mascarpone (4.5 g), ricotta and cheese spreads in its high-lactose group^[2].

These cheeses keep more whey, and processed cheese may have milk ingredients added back. On ingredient lists, the NIDDK says the words milk, lactose, whey, curds, milk by-products, dry milk solids and nonfat dry milk powder all mean the product contains lactose^[5].

"High" is relative. A 20 g slice of processed cheese carries about 1.3 g of lactose by our calculation from the NHS figure, about a tenth of a cup of milk^[2]. Portion size and what else you eat that day matter more than any single cheese.

Lactose-free cheese vs naturally low-lactose cheese

"Lactose-free" cheese is usually made with added lactase enzyme, while naturally low-lactose cheese gets there through whey drainage and fermentation. The Italian study used a cut-off of under 0.1 g per 100 g to call a cheese naturally lactose-free^[1]. The NHS guide lists lactose-free cheese at under 0.1 g per 100 g, the same range as hard cheese^[2].

So if you already eat aged hard cheese without trouble, a lactose-free label adds little. Lactose-free versions help most with naturally higher-lactose foods such as cottage cheese, cream cheese and milk. The NIDDK notes that lactose-free and lactose-reduced products are as healthy as their regular versions^[5].

One group should not rely on any of this: people with a milk allergy. A milk allergy is an immune system disorder, not a digestion problem^[11]. It requires strict avoidance of all milk products, including aged and lactose-free cheese^[2].

Is yogurt OK if you are lactose intolerant?

Yogurt with live cultures is often easier to digest than its lactose content suggests. In a breath-test study of nine lactase-deficient adults, yogurt improved lactose digestion because its bacteria carry their own lactase (beta-galactosidase) that keeps working in the gut^[12]. Pasteurizing the yogurt after fermentation cut that enzyme activity 10-fold and removed the benefit^[12].

A later study in 22 people found that eating yogurt with a meal did not reduce this effect and may slightly improve it^[13]. The bacterial enzyme could not handle extra lactose added on top of what the yogurt already contained^[13]. The NIDDK lists yogurt with hard cheese as dairy foods many people find easier to tolerate^[5].

Yogurt still contains 3.6 to 4.7 g of lactose per 100 g, much more than hard cheese^[2]. To compare products, see our guides to yogurt probiotics and kefir vs yogurt.

Can your gut bacteria adapt to dairy?

Small studies suggest your colon bacteria can adapt to regular lactose and ease symptoms, though the evidence is limited. In a blinded crossover trial of 20 adults with lactose maldigestion, 10 days of gradually increasing lactose cut breath hydrogen sharply (9 vs 385 ppm·h after dextrose). Gas frequency and severity fell by half^[14]. A pilot phase in the same study found that fecal lactase activity tripled after 16 days of lactose feeding^[14].

In 17 adolescent girls eating a dairy-rich diet with about 33 g of lactose a day for 21 days, breath hydrogen fell from 148 to 101 ppm·h, and symptoms stayed negligible^[15]. That study had no control group. A systematic review of randomized trials rated the overall evidence for colonic adaptation as insufficient^[3].

The microbiome angle comes from trials of a purified galactooligosaccharide (GOS), a prebiotic. In a placebo-controlled trial, bifidobacteria rose in 27 of 30 people taking GOS (90%), along with lactose-fermenting Lactobacillus and Faecalibacterium^[16]. When participants then added dairy back, lactose-fermenting Roseburia increased too^[16].

A larger trial of 377 people found that 40% of those taking this GOS (called RP-G28) reached the main symptom goal, compared with 26% on placebo^[17]. The GOS group also ate more milk and dairy afterward^[17]. Both trials were funded by or linked to the product's developer, and RP-G28 is a pharmaceutical-grade product, not a standard supplement. Our lactose intolerance microbiome protocol covers how these findings fit into a broader plan.

How to find your cheese limit

Start low and build up, using hard cheese as the first step. A North Bristol NHS Trust dietetic guide suggests this approach^[2]:

1. Cut out lactose for 2 to 4 weeks. If you feel no better, lactose is probably not the cause.
2. Reintroduce lactose starting with low-lactose foods such as hard cheese.
3. Increase the amount slowly, then try higher-lactose foods.
4. When symptoms return, you have found your limit. Spread lactose through the day.

Eat dairy with meals and add it a little at a time^[5]. Larger amounts are often tolerated when they are spread across the day rather than eaten at once^[4]. Some lactose-intolerant people without irritable bowel syndrome can drink a glass of milk with a meal with no or minor symptoms^[18].

Lactase enzyme products are an option for higher-lactose meals^[5], but reviews describe their effect as uncertain or poorly studied^[7][2]. If you cut dairy back a lot, check your calcium and vitamin D intake. The NIDDK warns that avoiding all milk products can leave you short of both^[5].

Keeping some hard cheese in your diet has one more benefit. For people with eczema, asthma or other allergies, the NHS guide notes a very small risk of developing a milk-protein allergy after long, complete avoidance^[2].

This article is for general educational purposes and is not medical advice. Lactose values vary by brand, batch and aging time, and the per-serving figures here are estimates calculated from published per-100 g values. Talk to a qualified healthcare professional before making major changes to your diet, particularly if you are pregnant, immunocompromised, taking prescription medication, or managing a diagnosed condition.