From present Mali Centre Afrique Niger. The african geography was imprecise because no whites went into this hostile environment until new rifles and new medecine were discovered. The Niger river was supposed to flow all along the middle of west africa this was called Negroland.
Asparagus is high in vitamin K, which is the blood clotting vitamin. Many studies have found that vitamin K can also improve our bone health. These studies have also demonstrated that vitamin K can not only increase bone mineral density in osteoporotic people, but it can actually reduce fracture rates (1). Vitamin K is also a key player in supporting heart health.
Foods that contain a significant amount of vitamin K include beef liver, green tea, turnip greens, broccoli, kale, spinach, cabbage, asparagus, and dark green lettuce. Chlorophyll is the substance in plants that gives them their green color and provides vitamin K.ther things that may lead to vitamin K deficiency include: 1  Health problems that can prevent your body from absorbing vitamin K, such as gallbladder or biliary disease, cystic fibrosis, celiac disease, and Crohn's disease. 2  Liver disease. 3  Taking blood thinners, such as warfarin (Coumadin). 4  Long-term hemodialysis. 5  Serious burns.