Increasing MCV (Mean Corpuscular Volume) naturally primarily involves addressing the underlying cause. If MCV is low due to conditions like iron deficiency anemia, incorporating iron-rich foods into your diet can help, such as leafy green vegetables, legumes, fortified cereals, and lean meats. Additionally, consuming foods high in vitamin B12 and folate, such as fish, poultry, eggs, and fortified grains, can support red blood cell production. However, it's important to consult with a healthcare professional for a comprehensive evaluation and personalized recommendations based on your specific situation. They can guide you on the best dietary and lifestyle approaches to increase MCV naturally.