In a nutrition program, which pair correctly distinguishes proximal measures from outcomes?

• A. Proximal: daily fruit intake; Outcome: body weight
• B. Proximal: lipid levels; Outcome: daily water intake
• C. Proximal: daily fruit intake; Outcome: body weight
• D. Proximal: long-term disease incidence; Outcome: weeks of meeting fruit goals

Answer: (C)

Proximal measures are short‑term, immediate behaviors or process indicators you can influence directly in a program, while outcomes are the health results that emerge after those behaviors have had time to affect the body.

Pairing daily fruit intake as the proximal measure with body weight as the outcome fits this pattern: daily fruit intake is a behavior you can track and modify on a day‑to‑day basis, whereas body weight reflects a longer‑term health result that results from sustained changes in diet.

The other options mix these roles. Lipid levels are a health outcome, not a proximal behavior, so labeling them as proximal is off. Daily water intake is a behavior that could be proximal, but in that option it’s paired with an outcome that isn’t actually the health result being targeted. Long‑term disease incidence is an outcome, not a proximal measure, and weeks of meeting fruit goals describe adherence to a behavior, not a health outcome.