Yes, grapefruit can potentially enhance fertility, primarily due to its high vitamin C content. A medium-sized grapefruit contains about 77 mg of vitamin C, which is about 102% and 86% of the recommended daily intake for women and men, respectively. Vitamin C is an antioxidant that helps protect the eggs and sperm from oxidative stress, thus enhancing reproductive health. However, nutrition is just one factor in fertility, and diet changes should be part of a larger lifestyle and healthcare strategy.