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[Vitamin C].

¹Unidad de Dermatología, Hospital da Costa, Rafael Vior s/n, 27880 Burela, Lugo, Spain. fernando.valdes.tascon@sergas.es

Actas Dermo-Sifiliograficas

|December 19, 2006

Summary

This summary is machine-generated.

Vitamin C (ascorbic acid) is essential for collagen synthesis and antioxidant defense. Deficiency causes scurvy, a rare but serious condition characterized by weakness and skin lesions.

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Area of Science:

Biochemistry
Nutrition Science

Context:

Vitamin C (ascorbic acid) is a vital nutrient synthesized from glucose metabolism.
It functions as a potent antioxidant and is crucial for collagen production.
Humans cannot synthesize Vitamin C, necessitating dietary intake.

Purpose:

To outline the role of Vitamin C in human health.
To describe dietary sources and recommended daily intake.
To detail the consequences of Vitamin C deficiency (scurvy).

Summary:

Vitamin C is essential for collagen synthesis via proline and lysine hydroxylation and protects against free radical damage.
Plasma and leukocyte concentrations indicate dietary intake and body stores, respectively.
Rich sources include tomatoes, potatoes, and citrus fruits; recommended daily intake is 90 mg for men and 75 mg for women.

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Impact:

Understanding Vitamin C's role is crucial for preventing deficiency diseases like scurvy.
Highlights the need for adequate intake, especially in vulnerable populations (e.g., smokers, chronic disease patients).
Emphasizes the characteristic symptoms of scurvy, including skin manifestations and impaired wound healing.