Evidence supporting the use of: Citrus
For the body system: Capillaries

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Citrus fruits, particularly oranges, lemons, and grapefruits, are rich sources of vitamin C (ascorbic acid) and various bioflavonoids such as hesperidin and rutin. Scientific evidence suggests that vitamin C plays a significant role in supporting capillary health by facilitating collagen synthesis, which is essential for the integrity and strength of blood vessel walls. Deficiency in vitamin C can lead to weakened capillaries, resulting in conditions like easy bruising and, in severe cases, scurvy.

Bioflavonoids present in citrus fruits have also been studied for their vascular protective effects. For example, hesperidin and diosmin, both found in citrus, have been shown in clinical and preclinical studies to strengthen capillaries, reduce capillary permeability, and improve symptoms in chronic venous insufficiency. These compounds may work synergistically with vitamin C to enhance capillary stability. However, while the evidence is supportive, many studies are small or focus on specific formulations rather than whole citrus fruit consumption.

In summary, there is moderate scientific evidence that components of citrus fruits—mainly vitamin C and certain flavonoids—can support capillary health and function. This justifies the use of citrus for this body system, though more high-quality human studies are needed for definitive conclusions.

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