Is pasta good for weight loss?

Nobody can say for sure, because no randomized trial has tested pasta on its own. The closest answer is a meta-analysis of 32 trial comparisons in 2,448 adults in which pasta was eaten as one part of a low glycemic index (low-GI) diet. Those diets lowered body weight by 1.4 lb (95% CI 0.93 to 1.9; metric: 0.63 kg, 0.42 to 0.84) against higher-GI diets, on evidence the reviewers rated moderate. Pasta was never the only change, so that result belongs to the whole diet.

Unsettled. The meta-analysis screened 4,876 reports and found no trial of pasta alone on body weight. Every number on this page comes either from pasta inside a wider diet or from people who were only observed. Taken together they give no sign that pasta adds weight in an ordinary diet. They also give no reason to call it a weight-loss food.

What the trials found

Pasta inside low-GI diets

The same review found BMI fell by 0.26 kg/m2 (95% CI 0.16 to 0.36) and other measures of body fat did not change. The reviewers downgraded the evidence for indirectness because most trials never measured how much pasta people ate. In the 11 trials that did, people ate a median of 3.33 servings a week, and the weight result was 1.5 lb (0.70 kg) against 1.4 lb (0.63 kg) overall. The authors still write that it is difficult to quantify the effect of pasta in these diets.

The reason pasta belongs in a low-GI diet at all is its glycemic index. International tables built from more than 4,000 tested foods class pasta as usually low-GI, at 55 or below on the 100-point glucose scale, with consistent values around the world. A 2017 systematic review found pasta meals raised blood glucose less than bread or potato meals. The same review found evidence lacking on how pasta intake affects cardiometabolic risk. Glycemic index on its own says nothing about body weight.

Two small trials of pasta itself

In a 6-month trial in 49 adults with obesity on low-calorie Mediterranean diets, people eating pasta 5 or more times a week lost about 10 percent of their weight. Those eating it 3 or fewer times a week lost about 7 percent, a difference that did not reach significance, and weight stayed similar at month 12. The groups were set by how much pasta people already ate, so the trial was not randomized.

In a randomized crossover trial in 16 adults with overweight or obesity, wholegrain pasta made people feel fuller and less hungry than refined pasta. It did not change how much they ate at that meal or the next one. Each test was a single lunch.

In observational studies

Studies that only observe people point in different directions depending on how they are analyzed. An analysis of two Italian population studies of 23,366 adults reported that in the larger, Moli-sani, pasta intake corrected for body weight was linked to a lower BMI, with a coefficient of minus 0.87 in women and minus 0.51 in men. In the same Moli-sani data, raw pasta intake in grams per day was linked to a higher BMI in both sexes. The authors put the reversal down to women with obesity under-reporting what they ate, which means the choice of method decides the sign.

In the PREDIMED-Plus study of about 6,000 older Spanish adults with overweight or obesity, each extra daily serving of pasta was linked to 4.9 lb (2.23 kg) more weight lost over 2 years (95% CI 0.98 to 3.47). Mean intake there was only 8 to 9 g of dry pasta a day, so one extra serving reaches far beyond what most of them ate. In 2,562 Italian adults with type 2 diabetes, BMI, obesity and visceral obesity did not differ across quarters of pasta intake. In US NHANES data, pasta eaters as a whole did not differ in weight from people who ate none. Only women aged 19 to 50 who ate pasta had lower weight, BMI and waist, and a single subgroup in a survey like this shows association, not effect.

Who should be careful

Not for everyone. How much is on the plate matters for anyone trying to lose weight. A Cochrane review of 58 studies with 6,603 people found adults eat more when served larger portions or use larger packages and tableware, a standardized effect of 0.46 (95% CI 0.40 to 0.52) on moderate quality evidence. The review is about food in general, and we hold it only as a standardized effect, without grams or calories.

Ordinary wheat pasta contains gluten. NIDDK lists pastas among the foods made with gluten grains, and states that people with celiac disease need a gluten-free diet for life to keep symptoms and intestinal damage from coming back. For a reader with celiac disease who wants pasta in a weight-loss diet, it has to be gluten-free pasta.

What expert bodies say

This search did not turn up any expert body position on pasta and body weight. The one agency statement we hold is the NIDDK guidance on gluten above.

How we searched

What would change this answer

• A randomized trial of pasta itself at equal calories, lasting months, with body weight as the main outcome. Nothing like it is registered on ClinicalTrials.gov.
• Low-GI diet trials that record how much pasta people actually eat. Most of the 32 comparisons did not.
• Cohort analyses that fix their method for adjusting intake before they look at the data, since in Moli-sani the method alone turned a positive link into a negative one.

What is in a serving of pasta, nutrient by nutrient, is on the pasta page.

Sources

1. ev-pawl-01 · Meta-analysis or systematic review · systematic review and meta-analysis of RCTs with GRADE · n = 2,448
   Pasta in the context of low-GI dietary patterns significantly reduced body weight (MD=-0.63 kg; 95% CI -0.84 to -0.42 kg) and BMI (MD=-0.26 kg/m2; 95% CI -0.36 to -0.16 kg/m2) compared with higher-GI dietary patterns.
   
   Who: adults in randomized trials of at least 3 weeks; pasta in the context of low-GI dietary patterns vs higher-GI dietary patterns
   Effect: body weight MD -1.4 lb (95% CI -1.9 to -0.93; metric: -0.63 kg, -0.84 to -0.42); BMI MD -0.26 kg/m2 (-0.36 to -0.16); no effect on other adiposity measures; GRADE moderate for weight and BMI
   Certainty: pasta was one part of a low-GI diet in every trial; effect is of the whole pattern
   BMJ Open, 2018 · checked 2026-10-07 · we read the abstract
2. ev-pawl-02 · Meta-analysis or systematic review · systematic review and meta-analysis of RCTs · n = 4,876 reports screened
   No reports were identified that assessed the effect of pasta alone, while 29 reports (including 32 trial comparisons involving 2448 participants) were identified that assessed the effect of pasta in the context of low-GI dietary patterns on any adiposity outcome in adults.
   
   Who: randomized trials in adults assessing pasta and adiposity, literature to February 2017
   Effect: 0 trials of pasta alone; 29 reports (32 comparisons) of pasta within low-GI dietary patterns
   Certainty: evidence gap: the question 'does pasta itself help weight loss' has no direct RCT answer
   BMJ Open, 2018 · checked 2026-10-07 · we read the fulltext
3. ev-pawl-03 · Meta-analysis or systematic review · sensitivity analysis within a meta-analysis of RCTs · n = 11 trials
   Although sensitivity analyses in which analyses were restricted to the 11 trials that did quantify (providing a median 3.33 servings/week) pasta intake did not meaningfully alter our estimates (−0.70 kg vs −0.63 kg), it is difficult to quantify the effect of pasta in these diets.
   
   Who: 11 trials that quantified pasta intake within low-GI dietary patterns
   Effect: restricted analysis -1.5 lb (-0.70 kg) vs -1.4 lb (-0.63 kg) overall; median 3.33 servings of pasta per week
   Certainty: who funded the review should be checked against the full declaration before the page states it
   BMJ Open, 2018 · checked 2026-10-07 · we read the fulltext
4. ev-pawl-04 · Meta-analysis or systematic review · systematic review with meta-analysis of postprandial studies · n = —
   Pasta meals have significantly lower postprandial glucose response than bread or potato meals, but evidence was lacking in terms of how the intake of pasta can influence cardio-metabolic disease risk.
   
   Who: prospective cohorts and randomized dietary trials of pasta and pasta-related fiber and grain intake
   Effect: postprandial glucose lower after pasta than bread or potato (standardized mean difference meta-analysis); long-term effects unknown
   Certainty: mostly acute glucose studies, not weight outcomes
   Nutr Metab Cardiovasc Dis, 2017 · checked 2026-10-07 · we read the abstract
5. ev-pawl-05 · Observational data · cross-sectional analysis of two population cohorts · n = 23,366
   Multi-adjusted linear regression analysis (Table 2) indicated that the pasta-body weight residuals were negatively associated with BMI in women and men, respectively (β-coef=−0.87, P<0.001 in women and β-coef=−0.51, P<0.001 in men) (Table 2).
   
   Who: 14,402 Moli-sani participants aged 35 and over and 8,964 INHES participants aged over 18, Italy
   Effect: Moli-sani pasta-body weight residuals vs BMI: beta -0.87 in women, -0.51 in men (both P<0.001), multi-adjusted
   Certainty: cross-sectional; result depends on the residual method (see ev-pawl-06); reverse causation possible
   Nutr Diabetes, 2016 · checked 2026-10-07 · we read the fulltext
6. ev-pawl-06 · Observational data · cross-sectional analysis of a population cohort · n = 14,402
   Simple linear regression analysis indicated that pasta intake expressed as grams per day was positively associated with BMI in both genders (Figure 1).
   
   Who: Moli-sani cohort, Molise region, Italy, adults aged 35 and over
   Effect: crude: pasta g/day positively associated with BMI in both genders; direction reversed after residual methods
   Certainty: authors attribute the reversal to under-reporting of energy intake in women with obesity; the choice of method decides the sign
   Nutr Diabetes, 2016 · checked 2026-10-07 · we read the fulltext
7. ev-pawl-07 · Observational data · longitudinal observational analysis within a randomized trial · n = ~6,000
   When fully adjusted, every additional serving of pasta was associated with significantly greater 2 y decreases in body weight (-2.23(-3.47, -0.98 kg), BMI (-0.86(-1.27, -0.34 kg/m2) and WC (-1.92 (-3.46, -0.38 cm).
   
   Who: older adults (50% women) with overweight or obesity at high cardiometabolic risk, PREDIMED-Plus, Spain
   Effect: per serving/day: body weight -4.9 lb (95% CI -7.7 to -2.2; metric: -2.23 kg, -3.47 to -0.98); BMI -0.86 kg/m2 (-1.27 to -0.34); waist -0.76 in (-1.4 to -0.15; metric: -1.92 cm, -3.46 to -0.38) over 2 years
   Certainty: mean intake was only 8-9 g dry pasta a day, so 'one extra serving' extrapolates far beyond what most people ate; observational
   J Am Nutr Assoc, 2025 · checked 2026-10-07 · we read the abstract
8. ev-pawl-08 · Observational data · cross-sectional analysis of baseline data from a randomized trial · n = 2,562
   Glucose control, body mass index, prevalence of obesity, and visceral obesity were not significantly different across the quartiles of pasta intake.
   
   Who: people with type 2 diabetes in the TOSCA.IT study, Italy
   Effect: no significant difference in BMI, obesity or visceral obesity prevalence across sex-specific quartiles of pasta intake
   Certainty: baseline analysis; people with diabetes already counselled on carbohydrate
   Nutrients, 2019 · checked 2026-10-07 · we read the abstract
9. ev-pawl-09 · Observational data · cross-sectional analysis of NHANES · n = 400 adult pasta consumers
   No associations were observed when evaluating pasta consumption in all adults, however, gender-specific analysis revealed reduced body mass index, waist circumference, and body weight in females aged 19-50 years when compared to no pasta consumption.
   
   Who: US adults aged 19 and over, NHANES 2001-2012; pasta consumers vs non-consumers
   Effect: no association in all adults; lower BMI, waist and body weight in females aged 19-50
   Certainty: cross-sectional; subgroup finding; single author
   Papanikolaou Y. Front Nutr. 2020;7:112 · checked 2026-10-07 · we read the abstract
10. ev-pawl-10 · Observational data · quasi-experimental two-group trial, groups assigned by habitual pasta intake · n = 49
    After 6-month intervention, body weight reduction was -10 ± 8% and -7 ± 4% in HP and LP diet, respectively, and it remained similar at month 12.
    
    Who: adults with obesity on low-energy Mediterranean diets, high pasta (5 or more times/week) or low pasta (3 or fewer times/week), Italy
    Effect: weight change -10 +/- 8% (high pasta) vs -7 +/- 4% (low pasta); no significant difference between groups
    Certainty: not randomized; small
    Nutr Metab Cardiovasc Dis, 2020 · checked 2026-10-07 · we read the abstract
11. ev-pawl-11 · Randomized controlled trial(s) · randomized crossover trial, single meals · n = 16
    In conclusion, WGP increased satiety, diminished hunger without modifying energy intake at the subsequent meals.
    
    Who: overweight/obese subjects; wholegrain vs refined grain pasta with tomato sauce, ad libitum and iso-caloric lunch meals
    Effect: satiety higher and hunger lower with wholegrain pasta (p < 0.001); energy intake within meal p = 0.23 and at next meal p = 0.12, not different
    Certainty: acute, single-meal study; tiny sample
    Appetite, 2016 · checked 2026-10-07 · we read the abstract
12. ev-pawl-12 · Observational data · systematic review and tabulation of glycemic index testing · n = over 4000 items
    Dairy products, legumes, pasta, and fruits were usually low-GI foods (≤55 on the 100-point glucose scale) and had consistent values around the world.
    
    Who: published and unpublished glycemic index tests of foods worldwide
    Effect: pasta usually GI 55 or below on the glucose scale
    Certainty: GI says nothing directly about weight; it explains why pasta fits low-GI diets in ev-pawl-01
    Am J Clin Nutr, 2021 · checked 2026-10-07 · we read the abstract
13. ev-pawl-13 · Meta-analysis or systematic review · Cochrane systematic review and meta-analysis · n = 6,603
    A meta-analysis of 86 independent comparisons from 58 studies (6603 participants) found a small to moderate effect of portion, package, individual unit or tableware size on consumption of food (SMD 0.38, 95% CI 0.29 to 0.46), providing moderate quality evidence that exposure to larger sizes increased quantities of food consumed among children (SMD 0.21, 95% CI 0.10 to 0.31) and adults (SMD 0.46, 95% CI 0.40 to 0.52).
    
    Who: children and adults in randomized studies manipulating portion, package or tableware size
    Effect: consumption SMD 0.38 overall (95% CI 0.29 to 0.46); adults SMD 0.46 (0.40 to 0.52); children 0.21; moderate quality
    Certainty: not pasta-specific; applies to any served food, including large restaurant pasta plates
    Cochrane Database Syst Rev, 2015 · checked 2026-10-07 · we read the abstract
14. ev-pawl-14 · Position of an expert body · agency guidance · n = —
    Gluten is found in foods that contain ingredients made from these grains, including baked goods, baking mixes, breads, cereals, and pastas.
    
    Who: people with celiac disease
    Effect: wheat pasta contains gluten
    Certainty: wheat pasta; gluten-free pasta exists
    NIDDK (NIH), Eating, Diet, & Nutrition for Celiac Disease · checked 2026-10-07 · we read the section
15. ev-pawl-15 · Position of an expert body · agency guidance · n = —
    People with celiac disease need to follow a gluten-free diet for life to prevent symptoms and intestinal damage from coming back.
    
    Who: people with celiac disease
    Effect: lifelong gluten-free diet
    Certainty: for a weight-loss reader with celiac disease, the pasta must be gluten-free
    NIDDK (NIH), Eating, Diet, & Nutrition for Celiac Disease · checked 2026-10-07 · we read the section