Though it is widely believed that pumpkin seeds are high in vitamin B7, i.e., [simple_tooltip text=biotin tooltip=A water-soluble vitamin found in food sources, such as egg and avocado that can promote strong hair and combat hair loss. ], there is not enough research to prove the same. These seeds are said to aid in raising the amount of [simple_tooltip text=keratin tooltip=A fibrous protein found in the body that helps provide structure to nails, skin, and hair and promotes their overall health. ]in the hair strands to strengthen them.