Increases in dietary glycemic index, glycemic load, and the consumption of starch, added sugars, refined grains, and starchy vegetables were linked to greater weight gain

Not all carbohydrates are created equal when it comes to their impact on body weight, says a study published in BMJ journal. The study, conducted over 24 to 28 years, found that certain types of carbohydrates can lead to greater weight gain in mid-life, while others are associated with less weight gain.

The study found that increases in dietary glycemic index, glycemic load, and the consumption of starch, added sugars, refined grains, and starchy vegetables were linked to greater weight gain.

Conversely, an increase in the intake of fiber, whole grains, fruit, and non-starchy vegetables was associated with less weight gain.

These associations were even more significant among participants who were overweight or obese at the beginning of the study.

Replacing refined grains, starchy vegetables, and sugar-sweetened beverages with equal servings of whole grains, fruit, or non-starchy vegetables was linked to less weight gain, the study found.

Interestingly, increases in starch intake were found to have a stronger association with weight gain than increases in added sugar.

The study stresses the importance of not just focusing on the quantity of carbohydrates but also considering their quality and source. It aligns with dietary guidelines that recommend a higher intake of whole grains, dietary fiber, and a reduction in added sugars for overall health.

The findings come at a time when obesity rates are on the rise globally, highlighting the need for more nuanced dietary recommendations to combat this ongoing health issue.

While previous studies have often focused on low-carb or low-fat diets, this research points out that it’s not solely about the quantity of carbs or fats but the quality of the foods we choose to consume. It suggests that making informed choices about carbohydrates could be a key factor in preventing gradual weight gain over midlife that can lead to obesity.

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