Are all fruits and vegetables created equal
18 Jan 2016

Are all fruits and vegetables created equal?

2 mins to read
Fruit and vegetables are an important part of any weight management eating plan. Yet research suggests that some varieties may be a better choice than others for a healthy waistline.


We are often advised to eat a wide variety of fruits and vegetables to help achieve and  maintain a healthy weight. Compared to processed foods, fruits and vegetables are generally lower in kilojoules, sugar and fat, and also supply a healthy dose of fibre and nutrients.

However, based on their specific nutrient composition, some particular fruits and vegetables may be more or less beneficial for maintaining or achieving a healthy weight.

What to look for

The components of fruits and vegetables that may result in varying degrees of impact on weight change include:
  • Fibre content- higher fibre helps you to feel fuller for longer which in turn may reduce total energy intake and prevent weight gain
  • Glycemic load- foods which trigger a lower glycemic response produce fewer and smaller glucose spikes after eating, which may decrease subsequent hunger and reduce total energy intake
  • Sugars- found in moderate amounts in fruit, but concentrated in fruit juice, too much is associated with an increased risk of weight gain
  • Polyphenols- biologically active nutrients concentrated in fruits and vegetables that may influence insulin sensitivity and gut microbes

The research

Research published in PLoS online examined which types of fruits and vegetables had the most significant impact on weight loss, and weight gain.

over the study followed over 130,000 American adults over 24 years, and found that overall, an increase in both total fruit intake and total vegetable intake reduced  the chances of weight gain.

However, some vegetables and fruits were found to be more beneficial than others.

Fruits and vegetables that were higher in fibre, and lower in glycemic load were also found to be the most beneficial in terms of weight management.

READ MORE: Low GI vs. low fat – which diet is best?


Both cruciferous and green leafy vegetables had a positive influence, while, starchy vegetables including baked, boiled or mashed potatoes, peas and or corn actually contributed to weight gain.

Beneficial fruits included blueberries, prunes, apples, pears, strawberries, grapes and grapefruit.

The results were irrespective of individual differences in body mass index, physical activity, hours of sitting or watching TV, hours of sleep, and alcohol intake.

4 fixes to clean-up your diet

  • Eat more greens- vegetables such as spinach, broccoli, cabbage, Brussel sprouts, green beans, asparagus and boy choy are all high in fibre, and have a low glycemic load. Seek out recipes that include these vegetables, such as salads and stir-fries
  • Eat less starch- vegetables high in starch such as potatoes, peas and corn were associated with weight gain. Although these vegetables have nutritional value (including potassium, vitamin C, vitamin B6, iron, fibre, and protein), they have a higher glycemic load. They can be considered a lower quality carbohydrate compared to non- starchy vegetables, and their intake should be limited if your goal is to reduce body fat
  • Enjoy fruit, not juice- moderate amounts of fruits such as apples, pears and strawberries all helped to prevent weight gain. Just make sure to eat fruit whole, and avoid juice to minimise your sugar intake
  • Focus on fibre- make sure to eat the skins on fruits and vegetables where possible to maximise their fibre content, especially foods such as apples, pears and carrots


Source: PLOS Medicine | DOI:10.1371/journal.pmed.1001878 September 22, 2015



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