Glucose-fructose syrup

Animal and lab studies only

• Concern

  Cancer risk³

  In animal studies, glucose-fructose syrup sped up tumour growth in colorectal, breast and melanoma models, even without obesity.

• Concern

  Male fertility⁴

  In animal studies, long-term high-fructose corn syrup lowered sperm count and changed testicle tissue in rats.

Study type not stated

• Open question

  Blood sugar and fats²

  In studies, glucose-fructose syrup and table sugar changed blood sugar, fats, and appetite the same.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least two findings in people. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.