In the quiet arithmetic of British nutrition, a modest glass of fruit juice has emerged as an unlikely guardian of vitamin C adequacy — not because it is consumed widely, but because it is consumed intensely by the minority who choose it. A dietary analysis of over three thousand participants reveals that juice, drunk by fewer than half the population, supplies a quarter of the nation's vitamin C, with teenage girls and elderly women most at risk of falling short. The study's deeper insight is not a call to drink more, but a recognition that the greatest nutritional good lies in reaching those