"Citrus fruits: Vitamin C helps build up your immune system. Vitamin C is thought to increase the production of white blood cells. These are key to fighting infections.
Popular citrus fruits available:
- Sweet Lime
- Oranges
- Lemons
- Grapefruit
Because your body doesn’t produce or store it, you need daily vitamin C for continued health. Almost all citrus fruits are high in vitamin C. "

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