The Claim

Higher urinary concentrations of total sugars, glucose, and fructose are associated with lower BMI and waist-to-height ratio z-scores in children and adolescents aged 8–17 years.

Source: Urinary Sweeteners and Sugars in Relation to Childhood Obesity: The SWEET Project

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
44score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

In children and adolescents aged 8–17 years, higher levels of sugars in urine are linked to lower body mass index and waist-to-height ratio measurements.

See the scientific wording

Higher urinary concentrations of total sugars, glucose, and fructose are associated with lower BMI and waist-to-height ratio z-scores in children and adolescents aged 8–17 years, suggesting that greater sugar excretion may reflect dietary patterns linked to lower adiposity, despite conventional assumptions about sugar and obesity.

Why this might work

When children eat more whole fruits, their bodies absorb less sugar from the gut because fruit fiber slows digestion, and the kidneys filter out more glucose and fructose into urine. This pattern happens alongside lower body fat because fruit replaces sugary drinks and processed snacks that cause fat storage.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Urinary Sweeteners and Sugars in Relation to Childhood Obesity: The SWEET Project

    Kids with more sugar in their urine actually tend to be leaner, not heavier, because they’re probably eating more fruit and natural sweets, not soda or candy. This flips the usual idea that sugar makes you fat.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.