Alfalfa, red clover, red raspberry leaf, comphrey, nettles, parsley, watercress, cleavers, horsetail, coltsfoot, palantain, chamomile, shepherds purse, borage, chicory, dandelion, kelp, dulse. A plant based diet is also your best bet. There is a well established link between vitamin E and fertility. Vitamin E is said to have a 'dramatic' effect on the reproductive systems of both the male and the female. Five hundred to 1500 IU taken daily by the male partner prior to conception has been shown to prevent birth defects in children of couples who have had defective children.
Vitamin E is depleted by mineral oil, oral contraceptives and sulphates.