Is Cheese Good for Constipation? What Our Data Says

2026-09-05 · By the Diet for Constipation data editorial team · 1,495 words

Is cheese good for constipation? No — and that is the shortest answer in this series. Not one form of cheese carries any meaningful fiber, so there is nothing in it that can help a sluggish bowel. But the question people usually mean is the other one: does cheese cause constipation? There the data is more surprising. Our database rates all 81 cheese forms yellow — zero fiber makes cheese useless as a helper, yet the belief that cheese is a constipating villain outruns the evidence, which holds only for a small group of young children. The full breakdown follows.

The honest answer, then the interesting one

"Good for constipation" requires one of three things: fiber, water, or a demonstrated effect on how the colon handles stool. Prunes have all three — 7.1 g of fiber plus sorbitol, the verdict that started this series. Cheese has none of the three. Fiber is 0.0 grams in nearly every form on the market; the two outliers in our database — a lactose-reduced cottage cheese at 0.6 g and a nonfat mozzarella at 1.8 g per 100 grams — carry trivial amounts almost certainly from added milk solids, and even taken at face value they change nothing. Water is low where cheese is eaten most: the aged, hard, grating cheeses people use daily sit at 30–42% water, against roughly 85% for fruit. And there is no osmotic or motility effect in cheese — no component that draws water into the bowel or speeds anything up.

So the answer to the asked question is a clean no. Cheese cannot help. The interesting question is whether it actively harms — and that is where the reputation and the evidence part ways.

The trials we have — milk, not cheese; children, not adults

Cheese-specific trials essentially do not exist. What medicine has are milk-elimination trials, and they are worth taking seriously because the effect inside them is real.

The strongest is a 1998 double-blind crossover trial in the New England Journal of Medicine: 65 young children with chronic constipation — some going 3 to 15 days between bowel movements — alternated between cow's milk and soy milk, neither families nor assessors knowing which was which (PMID 9770556). Forty-four of the 65 children (68%) resolved on the dairy-free arm; not one improved on cow's milk; and the effect reproduced under double-blind challenge. The responders carried markers of milk sensitivity — IgE antibodies, inflamed rectal mucosa, anal fissures. A 2013 Australian crossover trial (Nutrients; PMID 23340316) replicated the pattern on a smaller scale: all nine children who completed the soy arm resolved, and the milk-free washout period produced the highest resolution rate of the entire study, at 81%.

Three honesty notes before anyone swears off cheese. First, these were children — rigorous dairy-elimination trials in constipated adults do not exist. Second, they tested milk, not cheese; cheese was simply swept out along with all dairy, so no trial has ever isolated cheese itself. Third, the signal belongs to a sensitive subset — children whose constipation travels with allergy markers. For the general population, the evidence that cheese constipates is thin to absent. A real but narrow clinical signal, combined with zero ability to help, is exactly what our yellow rating is for.

Why cheese feels binding

The reputation is not random; it is a stack of real sensations pointed at the wrong organ.

Fat slows the stomach. Fatty meals delay gastric emptying — the after-dinner heaviness is genuine physiology. But the stomach is not the colon, and slow emptying is not constipation. The two get conflated constantly, and cheese is the fattiest food most plates carry.

Aged cheese is dry. At 30–42% water, a cheese board contributes almost none of the fluid that keeps stool soft — and its salty partners (crackers, salami) make the plate drier still.

The displacement effect. At 300–460 kcal per 100 grams, cheese is among the most energy-dense foods in any fridge. A cheese-heavy plate crowds out produce, beans and whole grains — and it is the missing fiber that does the damage, blamed on the cheese sitting next to it.

The salt load. Hard and processed cheeses run 1,000–1,800 mg of sodium per 100 grams. Salt itself does not constipate, but a dry, salty, fiber-free snack pattern is not a gut-friendly pattern, and cheese anchors a lot of those plates.

The case divided by water, fat and salt

Every figure comes from our own rated database (USDA source data, per 100 grams):

All 81 forms land yellow — zero fiber is the great equalizer. Everything else (fat, water, salt) is a spectrum between aged-dry and fresh-wet, and none of it reaches green or red.

Portion honesty, and fresh over aged

Keep portions honest. The USDA-style serving is 28–30 grams — one slice or a small matchbox. Cheese stops being a neutral partner when it becomes a 150-gram block with crackers.

Pick fresh over aged when the gut matters. Cottage cheese (82.5% water) and ricotta (73.7%) bring fluid to the plate; parmesan and process cheese bring salt and almost no water. Same zero fiber — different everything else.

Never let it replace the fiber carriers. Cheese beside beans or on a salad changes nothing; cheese instead of the beans is where the day's fiber math quietly collapses.

Know the exception. A young child with chronic constipation plus eczema, rhinitis or anal fissures matches the profile from the milk trials — that pattern is worth raising with the child's doctor, not self-managed. Adults who suspect dairy can run a time-boxed dairy-free trial and watch what actually changes. For the fermented side of dairy — strained, higher water, live cultures — see our yogurt verdict.

Sources

• USDA FoodData Central — cheese (cheddar, parmesan, gruyere, gouda, process American, mozzarella, ricotta, cottage, queso cotija)
• Iacono G, Cavataio F, Montalto G, et al. — Intolerance of cow's milk and chronic constipation in children. New England Journal of Medicine, 1998;339(16):1100-1104 (PMID 9770556)
• Crowley ET, Williams LT, Roberts TK, Dunstan RH, Jones PD — Does milk cause constipation? A crossover dietary trial. Nutrients, 2013;5(1):253-266 (PMID 23340316)
• The full green-light board: Best Foods for Constipation

→ Related: Foods That Cause Constipation

→ All Food Verdicts

This article is informational only, based on published research and USDA data. It is maintained by our data editorial team — not medical professionals. Nothing here is medical advice.