What percentage of the U.S. population is estimated to have vitamin C deficiencies?

The estimate that about 7% of the U.S. population has vitamin C deficiencies is grounded in research indicating that while overt scurvy is rare, subclinical deficiencies are more prevalent, particularly among certain demographics. Factors such as age, socioeconomic status, and dietary habits can contribute to varying levels of vitamin C intake, with some segments of the population being at a higher risk.

Additionally, vitamin C is crucial for collagen synthesis, immune function, and the absorption of iron from plant-based sources. Individuals who consume an inadequate amount of fruits and vegetables—natural sources of vitamin C—are more likely to fall below the recommended daily intake. As a result, nutritional guidelines emphasize the importance of incorporating foods rich in this vitamin to combat deficiencies, especially considering that the body's stores of vitamin C can be depleted over time if not replenished through diet. The 7% estimation reflects a moderate level of deficiency in the context of the overall population and is indicative of a public health concern warranting attention.