What is the role of nutrition in wound healing?

What is the role of nutrition in wound healing?
Nutrition plays an important role in wound healing as adequate amounts of nutrients and energy are necessary for the body's repair and regeneration processes. Protein, vitamins and minerals such as vitamin C, iron and zinc, as well as essential fatty acids, are all important for wound healing. Adequate calorie intake is also important to support the increased energy demands during the healing process. Deficiencies in any of these nutrients can impair wound healing and delay the recovery process.

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Hi, at which stage that they are most effective?