Supplements with too much Vitamin A can be toxic to the liver since Vitamin A is a fat soluble vitamin (meaning more gets stored than excreted.) Sweet potatoes and other foods rich in Vitamin A, however, do not cause liver toxicity and can not be stored for long-term use like supplements can.
The wound healing stages are made up of three basic phases: inflammation, proliferation and maturation. There are many types of wounds that require different wound care products for proper recovery from an ulcer or laceration, but most go through similar healing stages.
The Causes of Wounds Healing Slowly. All wounds heal in three stages. First, the wound becomes inflamed as an immune response to prevent infections. Second, new cellsâbetter known as a scabâform over the wound. And finally scar tissue forms, healing the wound. While cuts with even edges tend to heal quicker and better than cuts than rough edges, disease and nutritional deficits can cause the healing process to slow in both types of wounds.