Skin scan scores did not track Potassium in 24-hour urine samples from 69 children in this study. The study looked at 75 children, ages 8 to 13. They attended five primary schools in New Zealand. Parents or caregivers helped them answer questions about fruit and vegetable intake. Researchers also collected full-day urine samples from 69 children to measure Potassium. The skin scan measured carotenoids, natural pigments found in fruits and vegetables. These pigments can build up in skin. The scan uses reflected light to give a score. Researchers explored how that score related to food intake and household income. The average skin score was 236. Just over half the children, 51%, scored below 250, the study’s low-score cutoff. Only six children, or 8%, met vegetable intake recommendations. Lower fruit intake and lower household income were linked to lower skin scores. But urine results showed no clear link with those scores. These measures did not tell the same story. The study was a snapshot, not a test of changing food habits. It cannot show that eating more fruit caused higher skin scores. It also did not report blood levels, so the findings cannot explain bloodwork results. For BioSocial members, that distinction matters when comparing food logs with lab results. Recording the test type alongside each number keeps those comparisons clear. Community notes can explore food habits without treating a skin score as a substitute for bloodwork. What have you noticed when comparing your fruit and vegetable habits with your Potassium results?