The Claim

Free sugar intake from solid foods exhibits a U-shaped association with cardiovascular disease risk, with the lowest risk at 7% of total energy intake and increased risk at both lower and higher intakes.

Source: Association of sugar intake from different sources with cardiovascular disease incidence in the prospective cohort of UK Biobank participants

What the research says

Supports is higher

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

Supports
60score
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

Consuming too much or too little free sugar from solid foods is linked to higher risk of cardiovascular disease, with the lowest risk occurring when free sugar makes up 7% of total daily energy intake.

See the scientific wording

Free sugar intake from solid foods exhibits a U-shaped association with cardiovascular disease risk, with the lowest risk at 7% of total energy intake and increased risk at both lower and higher intakes, indicating that both excessive and very low consumption may be harmful.

Why this might work

When sugar intake is around 7% of daily calories, the liver processes it efficiently without building up fat or causing insulin resistance. Too little sugar forces the body to break down fat for energy, which increases harmful blood fats and inflammation. Too much sugar overloads the liver, making it produce excess fat and insulin resistance, which damages blood vessels and raises heart disease risk.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Association of sugar intake from different sources with cardiovascular disease incidence in the prospective cohort of UK Biobank participants

    This study found that eating a moderate amount of sugar in foods like cakes or cereals (about 7% of daily calories) is linked to the lowest heart disease risk — eating much more or much less sugar from these foods was linked to higher risk.

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.