Cottage cheese vs yogurt: more salt in one, more trials on the other

The strongest result here is narrow. By a meta-analysis of 4 studies with 533 pregnant women, probiotic yogurt was associated with about two thirds lower odds of gestational diabetes (OR 0.35, 95% CI 0.19 to 0.62), from only four studies whose authors ask for more trials. We found no comparable result for ordinary yogurt. A second meta-analysis, of 33 trials comparing probiotic with conventional yogurt, found fecal acetate only slightly higher (SMD 0.29) and called the advantage of probiotic yogurt uncertain because the evidence was of very low certainty. We found no trial of that kind for cottage cheese. What separates the two in the tub is protein and salt. Per 100 g, full fat cottage cheese carried 11.6 g of protein and 350 mg of sodium in USDA samples against 3.8 g and 42 mg in plain whole-milk yogurt, while Greek nonfat yogurt reached 10.3 g of protein with 36 mg of sodium.

How much is actually in it

• Per 100 g, cottage cheese carried 11.6 g protein and 350 mg sodium against 3.8 g protein and 42 mg sodium in plain whole-milk yogurt, while Greek nonfat yogurt had 10.3 g protein. — USDA Foundation Foods: Cottage cheese full fat; Yogurt plain whole milk; Yogurt Greek plain nonfat; Yogurt plain nonfat, per 3.5 oz (100 g) (n = 8-18 samples per nutrient) Evidence E source
  Cottage cheese protein 11.62 g, sodium 349.8 mg (276.5-412), calcium 88.3 mg; whole yogurt protein 3.82 g, sodium 41.8 mg, calcium 126.8 mg, lactose 3.35 g; Greek nonfat protein 10.3 g, sodium 36 mg, calcium 111 mg, lactose 2.57 g; nonfat plain calcium 167.4 mg
• By the UK composition tables plain cottage cheese has 9.4 g protein and 250 mg sodium per 3.5 oz (100 g) against 5.7 g protein and 80 mg sodium in whole-milk plain yogurt. — CoFID 2021 records 12-539 Cheese, cottage, plain; 12-184 Yogurt, whole milk, plain; 12-555 Yogurt, Greek style, plain, per 100 g (n = 3 reference records) Evidence E source
  Cottage cheese 103 calories, protein 9.4 g, fat 6.0 g, calcium 127 mg, sodium 250 mg; whole yogurt 79 calories, protein 5.7 g, calcium 200 mg, sodium 80 mg; Greek style 133 calories, fat 10.2 g, protein 5.7 g

What a real portion looks like

• In a crossover RCT of 30 adults, a cottage cheese snack with 26 g protein was as filling as an omelette, with the buffet requested about 167 minutes later after either snack. — 30 healthy volunteers, isocaloric snacks of 1346 kJ, 26 g protein, 21 g lipids (n = 30) Evidence B source
  Time to buffet request 167 ± 8 min and buffet intake 3988 ± 180 kJ, similar for both snacks
• In the US survey database a cup of cottage cheese weighs 7.4 oz (210 g) and an unspecified portion 3.7 oz (105 g), while a yogurt container is 170 g and a cup 245 g. — USDA FNDDS household measures for Cheese, cottage, NFS (14200100) and Yogurt, whole milk, plain (11411100) (n = 2 and 5 measures) Evidence E source
  Cottage cheese 1 cup 210 g, quantity not specified 105 g; yogurt 4 oz container 113 g, 6 oz container 170 g, 1 cup 245 g, quantity not specified 170 g

What your body absorbs

• In a 3-week crossover RCT of 30 young women, a synbiotic yogurt with inulin and LGG raised calcium absorption 1.24-fold against a control yogurt. — 30 normal-weight women aged 25 ± 3.5 years, 6.3 fl oz (185 mL) daily, 3-week phases, 42Ca tracer (n = 30) Evidence B source
  SYN/CON tracer ratio 1.24 at 0-36 h (P = 0.015); 19 of 30 responders
• The EU authorized the claim that live cultures in yogurt or fermented milk improve lactose digestion in people who have difficulty digesting lactose. — EU Register on nutrition and health claims, substance Live yogurt cultures Evidence E source
  Authorized

What it does to your health

• Observational data from 9 studies with 47,778 adults link higher yogurt intake with 21% lower odds of abdominal obesity. — Adults, 9 observational studies, 47,778 participants (n = 47778) Evidence C source
  OR 0.79, 95% CI 0.70 to 0.89
• Observational data from 634,327 people tie total dairy and milk to higher Parkinson's disease risk, but yogurt and cheese showed no association. — 8 cohorts and 1 case-control study, 634,327 cohort participants, 4285 incident cases (n = 634327) Evidence C source
  Total dairy RR 1.211 (1.071 to 1.37); milk RR 1.13; yogurt/fermented milk and cheese not significant
• In a crossover RCT of 119 healthy adults eating 8.8 oz (250 g) yogurt daily, Streptococcus thermophilus rose from absent to about 1% of gut bacteria, with no change in health markers. — 119 healthy adults in Freiburg, 250 g yogurt per day with or without 50 g rolled oats, 4-week phases (n = 119) Evidence B source
  S. thermophilus 0.97% (0.71 to 1.26); no effect on fecal SCFA or blood health markers

Safety, limits and interactions

• In the same 119-person yogurt trial, 3 participants quit because 8.8 oz (250 g) of yogurt a day caused digestive problems. — 119 healthy adults, 250 g yogurt per day for 4-week phases (n = 119) Evidence B source
  3 of 119 withdrew for digestive problems caused by yogurt
• A case report links a Lactobacillus bloodstream infection in a toddler with a central line and intestinal failure to the Greek yogurt he ate daily. — One toddler with intestinal failure and a central venous catheter (n = 1) Evidence D source
  About 99% genetic similarity between the blood isolate and the yogurt Lactobacillus

What people believe that the data does not support

• By a meta-analysis of 33 trials, probiotic yogurt raised fecal acetate only slightly (SMD 0.29) and its superiority over ordinary yogurt remains uncertain. — 33 randomized parallel and crossover trials comparing probiotic with conventional yogurt (n = 33 trials) Evidence A source
  Fecal acetate SMD 0.29 (0.02 to 0.57); CRP MD -0.61 mg/L (-2.25 to 1.03, not significant); IL-10 SMD 0.48 (0.15 to 0.80)
• Observational data from 6 cohorts show no link between yogurt intake and hip fracture risk (HR 1.01) and a clinically irrelevant effect on bone density. — Adults with or without osteoporosis, 12 observational studies, 6 cohorts pooled for hip fracture (n = 12 studies) Evidence C source
  Hip fracture HR 1.01, 95% CI 0.96 to 1.07; BMD SMD 0.009
• In a crossover RCT of 10 active women, cottage cheese with 30 g protein before sleep did not change next-morning energy expenditure or hunger versus placebo. — 10 active women aged about 23, pre-sleep cottage cheese vs casein drink vs placebo (n = 10) Evidence B source
  Morning REE 5840 vs 5694 vs 5991 kJ/d, P = 0.79; appetite not different
• The EU did not authorize the claim that fat-free yogurts with live cultures and added vitamin D help maintain muscle and bone during an energy-restricted diet. — EU Register on nutrition and health claims, fat-free yogurts and fermented milks with live yogurt cultures Evidence E source
  Non-authorized
• Since March 2024 the FDA does not object to a qualified claim that eating at least 2 cups of yogurt a week may reduce type 2 diabetes risk, based on limited evidence. — US yogurt labeling, FDA enforcement discretion letter, March 1, 2024 Evidence E source
  Minimum 2 cups (3 servings) per week; evidence described as limited

Who this works differently for

• By a meta-analysis of 4 studies with 533 pregnant women, probiotic yogurt was associated with about two thirds lower odds of gestational diabetes (OR 0.35). — Pregnant women, 4 manuscripts pooled, 533 participants (n = 533) Evidence A source
  Pooled OR 0.35, 95% CI 0.19 to 0.62, I2 0%; fasting glucose Hedges g -0.37 (-0.68 to -0.05)
• Observational data from 95 Turkish children tie cow's milk allergy to lower maternal yogurt intake in pregnancy, 230 against 420 g a week. — 95 children aged 0-3 years, 46 with cow's milk protein allergy and 49 controls, maternal recall (n = 95) Evidence C source
  Maternal yogurt in pregnancy 230 g/week in cases vs 420 g/week in controls, p = 0.011

What is still unknown

• A 2025 systematic review screening 1302 records found no randomized or non-randomized trial of yogurt and bone health fit to include. — Adults, literature from 1970 to December 2024 (n = 1302 records) Evidence C source
  0 eligible clinical trials, 12 observational studies

The bottom line

British tables give smaller figures with the same pattern, 9.4 g of protein and 250 mg of sodium per 3.5 oz (100 g) in cottage cheese against 5.7 g and 80 mg in whole-milk yogurt. British Greek style yogurt is fattier than plain yogurt and has no extra protein. Calcium runs the other way, with 126.8 mg per 3.5 oz (100 g) in USDA whole-milk yogurt against 88.3 mg in cottage cheese. A cup of cottage cheese weighs 7.4 oz (210 g) in US survey data, and a yogurt container 170 g. As a snack, cottage cheese held its own. In a crossover trial of 30 adults, a cottage cheese snack with 26 g of protein kept people from asking for the buffet for about 167 minutes, the same as an omelette. Eaten before bed by 10 active women, it did not change next-morning energy expenditure or hunger compared with placebo. The bone story is thin. A 2025 review screening 1302 records found no clinical trial of yogurt and bone health, and pooled cohorts showed no link with hip fracture (HR 1.01, 95% CI 0.96 to 1.07). Observational data from 9 studies with 47,778 adults link higher yogurt intake with 21 percent lower odds of abdominal obesity, mostly from cross-sectional studies where reverse causation is possible. In 119 healthy adults eating 8.8 oz (250 g) of yogurt a day in 4 week phases, a yogurt bacterium rose to about 1 percent of gut bacteria, with no change in blood health markers. A synbiotic yogurt with added inulin raised calcium absorption 1.24-fold in 30 young women, a result about that product that did not measure bone. Cohorts that tie total dairy and milk to Parkinson's disease found no significant association for yogurt or cheese. The EU accepts that live yogurt cultures improve lactose digestion in people who digest lactose poorly, a claim cottage cheese does not carry. The FDA allows a qualified claim that at least 2 cups of yogurt a week may reduce type 2 diabetes risk, based on limited evidence. The cautions we found are these. Cottage cheese carried about eight times the sodium of plain whole-milk yogurt per 3.5 oz (100 g) in USDA samples, which matters if you limit salt. In that 119 person trial, 3 people quit because 8.8 oz (250 g) of yogurt a day caused digestive problems. A toddler with intestinal failure and a central venous line developed a Lactobacillus bloodstream infection about 99 percent genetically similar to the bacteria in the Greek yogurt he ate daily, a risk that concerns patients with central lines.

Sources

1. ccyo-daily-r6-14 · reference dataset
   Cottage cheese, full fat, large or small curd: Protein 11.62 g (9.70-14.67), Sodium 349.8 mg (276.5-412.0, n 10), Calcium 88.27 mg (67.3-111.5, n 10), Total lipid 4.225 g | Yogurt, plain, whole milk: Protein 3.82 g (3.13-5.04), Sodium 41.78 mg (36.45-55.0, n 8), Calcium 126.8 mg (101.0-163.0, n 8), Lactose 3.348 g (2.51-4.295, n 8) | Yogurt, Greek, plain, nonfat: Protein 10.3 g (6.89-12.2), Sodium 36.0 mg (n 18), Calcium 111.0 mg (n 18), Lactose 2.57 g (n 3) | Yogurt, plain, nonfat: Calcium 167.4 mg (121.0-205.0, n 8)
   USDA FoodData Central, Foundation Foods, release 2026-04-30 · checked 2026-10-02
2. ccyo-daily-r6-15 · reference dataset
   CoFID 12-539 Cheese, cottage, plain: Energy 103 kcal, Fat 6.0 g, Protein 9.4 g, Total sugars 3.1 g, Water 83.5 g, Calcium 127 mg, Sodium 250 mg | CoFID 12-184 Yogurt, whole milk, plain: Energy 79 kcal, Fat 3.0 g, Protein 5.7 g, Total sugars 7.8 g, Water 81.9 g, Calcium 200 mg, Sodium 80 mg | CoFID 12-555 Yogurt, Greek style, plain: Energy 133 kcal, Fat 10.2 g, Protein 5.7 g, Total sugars 4.5 g, Water 78.2 g, Calcium 126 mg, Sodium 66 mg
   CoFID 2021, Public Health England, records 12-539, 12-184 and 12-555 · checked 2026-10-02
3. ccyo-daily-r6-10 · RCT
   The two preloads were similar in terms of the time between the snack and a request for the buffet (167 ± 8 min), energy intake at the buffet (3988 ± 180 kJ) and appetite ratings.
   Appetite, 2015 · checked 2026-10-02
4. ccyo-daily-r6-16 · reference dataset
   Cheese, cottage, NFS, FNDDS 14200100: 1 cup 210 g | Quantity not specified 105 g || Yogurt, whole milk, plain, FNDDS 11411100: 1 4 oz container 113 g | 1 6 oz container 170 g | 1 container, NFS 170 g | 1 cup 245 g | Quantity not specified 170 g
   USDA FNDDS, Cheese cottage NFS 14200100 and Yogurt whole milk plain 11411100 · checked 2026-10-02
5. ccyo-daily-r6-07 · RCT
   The SYN/CON tracer ratio in the 0-36-h pool (1.24) was >1 (Wilcoxon, P = 0.015). About two-thirds (n = 19) of women studied responded to the SYN treatment.
   J Nutr, 2022 · checked 2026-10-02
6. ccyo-daily-r6-17 · EU claim register
   POL-HC-6400 Live yoghurt cultures Live cultures in yoghurt or fermented milk improve lactose digestion of the product in individuals who have difficulty digesting lactose Authorised
   EU Register on nutrition and health claims, claim POL-HC-6400, snapshot 2026-09-21 · checked 2026-10-02
7. ccyo-daily-r6-05 · Meta-analysis of observational studies
   Pooling effect sizes from 9 eligible studies with 47 778 participants showed that higher amounts of yogurt consumption was related to a 21% reduction in abdominal obesity (OR = 0.79; 95% CI, 0.70-0.89).
   Nutr Rev, 2026 · checked 2026-10-02
8. ccyo-daily-r6-06 · Meta-analysis of cohorts
   No significant associations were found for yogurt/fermented milk, cheese, butter, or ice cream.
   Public Health, 2026 · checked 2026-10-02
9. ccyo-daily-r6-08 · RCT
   Yogurt consumption transiently increased yogurt-associated bacteria, with Streptococcus thermophilus rising from absent to 0.97% [95% confidence interval (CI): 0.71, 1.26] in the yogurt intervention and 0.79% (95% CI: 0.58, 1.03) in the yogurt with oats intervention.
   J Nutr, 2026 · checked 2026-10-02
10. ccyo-daily-r6-09 · RCT
    Of the 119 healthy volunteers who enrolled in the study, 110 completed all 4 study phases. Nine participants withdrew because of digestive problems caused by yogurt consumption (n = 3), unplanned surgery (n = 2), antibiotic treatment (n = 1), a change of work schedule (n = 1), or for unspecified reasons (n = 2) (Figure 1B).
    J Nutr, 2026 · checked 2026-10-02
11. ccyo-daily-r6-12 · Case report
    Comparative genetic analysis predicted ~99% similarity between the CLABSI isolate and Lactobacillus isolates from the Greek yogurt the patient regularly consumed.
    Nutr Clin Pract, 2026 · checked 2026-10-02
12. ccyo-daily-r6-02 · Meta-analysis of RCTs
    Pooled analysis showed a statistically significant increase in fecal acetate levels (SMD 0.29; 95% confidence interval [CI]: 0.02; 0.57). ... However, due to the very low certainty of the evidence, superiority over CY is uncertain.
    J Nutr Biochem, 2026 · checked 2026-10-02
13. ccyo-daily-r6-03 · Meta-analysis of cohorts
    The meta-analysis of cohort studies (n = 6) found no significant association between yogurt consumption and hip fracture risk (HR = 1.01, 95% CI: 0.96-1.07), while the observed positive effect on BMD was minimal and clinically irrelevant (SMD = 0.009).
    Front Nutr, 2025 · checked 2026-10-02
14. ccyo-daily-r6-11 · RCT
    In active women, pre-sleep consumption of CC does not alter REE or RER more than a CP or PL beverage.
    Br J Nutr, 2018 · checked 2026-10-02
15. ccyo-daily-r6-18 · EU claim register
    POL-HC-8476 Fat-free yogurts and fermented milks with live yogurt cultures complying with the specifications Fat-free yogurts and fermented milks with live yogurt cultures, with added vitamin D, and with no added sugars, help to maintain lean body mass (muscle and bone) in the context of an energy-restricted diet -/- Non-authorised
    EU Register on nutrition and health claims, claim POL-HC-8476, snapshot 2026-09-21 · checked 2026-10-02
16. ccyo-daily-r6-19 · FDA qualified health claim
    The FDA considers 2 cups (3 servings) per week of yogurt to be the minimum amount for this qualified health claim.
    FDA, Constituent Update: FDA Announces Qualified Health Claim for Yogurt and Reduced Risk of Type 2 Diabetes, 2024 · checked 2026-10-02
17. ccyo-daily-r6-01 · Meta-analysis
    There was a statistically significant association between probiotic yogurt and reduced risk of gestational diabetes mellitus (Pooled OR 0.35; 95% CI 0.19-0.62; I2 = 0.0%).
    Diabetes Metab Syndr, 2023 · checked 2026-10-02
18. ccyo-daily-r6-13 · Case-control
    Yogurt intake during pregnancy was lower in cases (230 g/week) than in controls (420 g/week) (p = 0.011), while cheese intake was 210 g/week and 225 g/week, respectively (p = 0.042).
    Int Arch Allergy Immunol, 2026 · checked 2026-10-02
19. ccyo-daily-r6-04 · Systematic review
    We did not find any suitable randomized or non-randomized clinical trials that met the eligibility criteria.
    Front Nutr, 2025 · checked 2026-10-02