You can get a good amount of vitamin C or ascorbic acid in fruits and juices. Canned yams and pumpkin are good source of vitamin A, however these will degrade over time. Whole grains are a good source of vitamin B but it will also degrade over time. You can get vitamin D from sunshine in late spring, early fall and summer. You can also get vitamin D from cod liver oil or fish oil capsules, vitamin supplements or in some fishes.