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5 Worrying Signs of Vitamin C Deficiency


They are more commonly associated with iron deficiency anemia but have also been linked to vitamin C deficiency (1617).

Red spots or vertical lines in the nail bed, known as splinter hemorrhage, may also appear during vitamin C deficiency due to weakened blood vessels that rupture easily.

While the visual appearance of fingernails and toenails may help determine the likelihood of vitamin C deficiency, note that it’s not considered diagnostic.

Adrian MundwilerSource: CrossFit Inc
Maintain excellent health


Vitamin C keeps skin healthy by protecting it from oxidative damage caused by the sun and exposure to pollutants like cigarette smoke or the ozone (1819).

It also promotes collagen production, which keeps skin looking plump and youthful (20).

High intakes of v C are associated with better skin quality, while lower intakes are associated with a 10% increased risk of developing dry, wrinkled skin (212223).

While dry, damaged skin can be linked to v C deficiency, it can also be caused by many other factors, so this symptom alone is not enough to diagnose a deficiency.

Cardiovascular disease

Evidence from many epidemiological studies suggests that high intakes of fruits and vegetables are associated with a reduced risk of cardiovascular disease [24,25,26]. This association might be partly attributable to the antioxidant content of these foods because oxidative damage, including oxidative modification of low-density lipoproteins, is a major cause of cardiovascular disease [27,28,29]. In addition to its antioxidant properties, v C has been shown to reduce monocyte adherence to the endothelium, improve endothelium-dependent nitric oxide production and vasodilation, and reduce vascular smooth-muscle-cell apoptosis, which prevents plaque instability in atherosclerosis [30,31].

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