McKesson Brand Vitamin Supplement Vitamin E 1,000 IU Strength Softgel 100 per Bottle (689191_BT) 1/BTIf you don't eat a lot of nuts and seeds and green vegetables, such as broccoli and spinach, you may want to supplement your vitamin E intake so your immune system will be better prepared to fight off germs. There are 1000 IU of vitamin E per softgel. Vitamin E supplements are used as part of the treatment for ataxia.