When looking at how much of the total calories came from processed foods (instead of how many grams), there was no consistent link to breast density at any point in the menstrual cycle.

Scientific Claim

The study found no significant association between ultra-processed food consumption and breast density when measured as a percentage of calories, regardless of menstrual cycle phase.

Original Statement

“No significant associations were found between quartiles of UPF intake (as a percentage of calories) and log-transformed %FGV or AFGV. [...] In the adjusted model, girls in Q2 of UPF consumption (as a percentage of grams) had 12% increase in %FGV [...] however we did not observe differences comparing Q3 and Q4 against Q1. No significant associations were found for participants in the luteal phase.”

From study:Consumption of ultraprocessed foods and breast density in adolescence

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

association

Can only show association/correlation

Assessment Explanation

The claim correctly states 'no significant association' and specifies the measurement method (percentage of calories), which accurately reflects the study's findings. The language appropriately avoids causal language and specifies the context of the finding.

Evidence from Studies

Supporting (1)

Consumption of ultraprocessed foods and breast density in adolescence

Cohort Study

Human

2025 Nov 10

Contradicting (0)

No contradicting evidence found

Source Study

Consumption of ultraprocessed foods and breast density in adolescence

Score: 58

DOI: 10.1038/s41598-025-23030-x

Similar Assertions

When looking at how much of the total calories came from processed foods (instead of how many grams), there was no consistent link to breast density at any point in the menstrual cycle.

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