Vitamin D is a nutrient that plays many roles in your health. It helps your body absorb calcium and builds strong bones and teeth. While you can receive some vitamin D from sunlight, factors such as age & seasonality make it hard to determine how much you are receiving. Otherwise, there are not many other ways to increase your vitamin D intake outside of eating seafood, some dairy products, and supplements.
The amount of Vitamin D needed each day depends on your age (see references for specifics), but you can increase your Vitamin D intake with fatty fish such as salmon and sardines. Therefore, we recommend Clover Leaf salmon and sardines as a good source of Vitamin D for any healthy diet.