The Claim
In both obese and lean women, ingestion of 75 grams of fructose results in a greater increase in plasma lactate levels compared to ingestion of 75 grams of glucose, with no significant change in postprandial glucose and insulin concentrations.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When obese and lean women consume 75 grams of fructose, their blood lactate levels rise more than when they consume 75 grams of glucose, but their blood glucose and insulin levels do not change significantly.
See the scientific wording
In obese and lean women, ingestion of 75 grams of fructose leads to a greater increase in plasma lactate levels compared to 75 grams of glucose, while having minimal effects on postprandial glucose and insulin concentrations.
When fructose is eaten, the liver processes it quickly by using up a lot of energy, which forces the liver to break down sugar into lactate at a high rate. This lactate spills into the blood, raising its levels. Glucose does not do this because it is handled more slowly and evenly by the body. The lactate that builds up is then used by muscles and other tissues for energy, but it does not trigger a rise in blood sugar or insulin.
What the research says
1 studyStudy: Thermogenesis in obese women: effect of fructose vs. glucose added to a meal.
When people ate 75 grams of fructose, their blood lactate went up more than when they ate 75 grams of glucose, but their blood sugar and insulin didn’t change much either way — just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.