PASTA AND CARDIOMETABOLIC HEALTH

Primary outcomes (assessed at 2 years) were body weight, body mass index (BMI), waist circumference, and blood pressure. Secondary outcomes (assessed at 1 year) included fasting blood glucose, glycated haemoglobin (HbA1c: a measure of average blood glucose over the past 3 months), HDL(“good”)-cholesterol, and triglycerides.

After adjusting for a wide range of factors, including education level, marital status, smoking, alcohol use, physical activity, and adherence to the Mediterranean diet, the researchers found that higher pasta intake was significantly associated with greater decreases in body weight, BMI, and waist circumference over a two-year period.

The study also found no adverse associations between pasta consumption and other risk factors, including blood pressure (measured at two years) or fasting blood glucose, HbA1c, triglycerides, and HDL-cholesterol (measured at one year).

The researchers also conducted a substitution analysis, which uses mathematical modelling to estimate what would happen if a participant replaced one daily serving of white bread, white rice, or potatoes with an equivalent serving of pasta. This allowed them to see the potential benefit of swapping one carbohydrate source for another within a typical diet.

The substitution analysis found that:

• Replacing one daily serving of higher GI carbohydrate foods (such as white bread, white rice, or potatoes) with pasta was associated with significantly greater weight loss and reductions in BMI.
• Replacing white bread with pasta was linked to higher reductions in waist circumference.
• Replacing potatoes with pasta was associated with improvements in HDL-cholesterol.

These findings are good news for pasta-lovers who may have been avoiding pasta out of concern for their weight.

Unlike many other starchy carbohydrates, pasta has a low glycaemic index (GI), particularly when cooked al dente, and a unique starch-protein structure that slows digestion and may enhance satiety. This can make pasta a good food to include in a healthy eating plan for weight management. However, for optimal health outcomes, it is best included as part of a healthy overall diet, such as the Mediterranean diet. Choose olive-oil and tomato-based sauces over high-energy, cream and cheese-based sauces, and serve your favourite pasta in moderate portions alongside plenty of vegetables or with a large salad.

As with any observational study, there are some important limitations to consider. These include the observational nature of the research, the use of FFQs which rely on participants’ memory, and the generalisability of the findings to other (non-Mediterranean) populations. The study authors highlight the need for randomised controlled trials to investigate the effect of pasta intake on cardiometabolic risk in diverse populations with varied dietary patterns.