Cabbage contains fibre, folate, vitamin B6, vitamin C, and vitamin K. The fibre in cabbage and other leafy greens slows nutrient absorption. This allows the liver and kidneys to process the inflow into the bloodstream. Fibre prevents blood sugar spikes, which are one of the leading causes of kidney disease, and it also aids in the removal of toxins from the digestive tract. Vitamin K is essential for good blood coagulation. Cabbage also includes a high concentration of phytonutrients, which function as antioxidants and anti-inflammatories.