I have been on a Slimming World diet since January (prescribed by my GP practice) and have found my INR has fluctuated since then. I am still avoiding the same food/drink I was previously but wonder if the diet directly or indirectly had affected the INR results. One of the foods I have been taking more are porridge oats which one web search has said contains Vit.K. I would be pleased to hear about anyone who has experience of diets affecting their INR. Particularly Slimming World. I have lost over a stone so I'm pleased about that.