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. 2025 Jan 10;10:e67636. doi: 10.2196/67636

Table 2.

Examples of the individual-level food and behavior changes participants described implementing after seeing their continuous glucose monitoring (CGM) data.

ID Food changes Behavior changes
1
  • More: nonstarchy vegetables, other vegetables, and melon

  • Less: rice

Chose overall lower carbohydrates, ate vegetables before eating other foods, chose smaller portions, chose smaller meals spaced more evenly throughout the day, stopped eating before feeling full, skipped meals, and walked frequently (sometimes as much as every hour)
2
  • More: roasted peanuts in a shell

  • Less: rice (smaller portions), mini-candy bars, and candy

Chose smaller portions and added activity after meals
3
  • More: cottage cheese and strawberries, large salads, leafy greens, fish, nuts, vegetables, and protein foods

  • Less: oatmeal and grapes

Chose smaller portions, delayed evening meals, ate very low carbohydrate dinners, and walked in the afternoon
4
  • More: vegetables and homemade nonprocessed foods

  • Less: fast food; sweets; and chocolate kisses

None noted
5
  • More: salads, peanut butter, sweet potato, and cauliflower crust for pizza

  • Less: rice, crackers, chips, bread, Italian pasta, and alcohol

Measured portions, chose smaller portions overall (eg, half as much food), chose smaller portions of carbohydrates (eg, 1 piece of bread instead of 2), skipped meals, and walked more (even if only 10 min)
6
  • More: whole-wheat bread, whole-wheat pasta, and white meat

  • Less: Soda, fruit juices, candy, and chocolate bars

None noted
7
  • More: none noted

  • Less: cereal and bread

Chose smaller portions and walked more
8
  • More: Green leafy vegetables, other vegetables, fresh fruit, fresh whole foods, and low-sugar yogurt

  • Less: candy, pure sugar foods, and chips

Chose smaller portions and chose lower carbohydrate options
9
  • More: water, black coffee, vegetables, salads, cucumbers, celery, eggs, popcorn, and protein foods

  • Less: cereals

Chose smaller portions, reduced carbohydrate-heavy meals, delayed mealtimes, and walked after meals when glucose was high
10
  • More: vegetables and fruit

  • Less: certain carbohydrates and certain types and amounts of cereals

Measured out servings, chose smaller portions (eg, half bagel instead of whole), and chose overall lower carbohydrate
11
  • More: no specific changes were noted; however, the participant reported confidence in using the CGM data and described examples of food experimentation

  • Less: nothing noted

None noted
12
  • More: water

  • Less: sweets

Chose smaller portions
13
  • More: several vegetables

  • Less: milk

Chose smaller portions, chose overall lower carbohydrate (eg, dropped the bun), and ate a small amount of protein before bed
14
  • More: nonstarchy vegetables (steamer bags), cottage cheese, and protein foods

  • Less: soda

Chose smaller portions, added more protein to meals, read food labels, and limited sweets and sugars
15
  • More: no changes were noted; however, the participant reported confidence in using the CGM data and reported several examples of current food choices that were reinforced because of seeing CGM data

  • Less: cereals, pancakes, and baking with regular flour

None noted