Dermatitis affected about 10% of . workers in 2010, representing over 15 million workers with dermatitis. Prevalence rates were higher among females than among males, and among those with some college education or a college degree compared to those with a high school diploma or less. Workers employed in healthcare and social assistance industries and life, physical, and social science occupations had the highest rates of reported dermatitis. About 6% of dermatitis cases among . workers were attributed to work by a healthcare professional, indicating that the prevalence rate of work-related dermatitis among workers was at least %. 
If you eat right and get a little sunshine every day, you shouldn't need to take a multi. Try to eat as many fruits, vegetables, and greens as possible - and get 10-15 minutes of full sun exposure (best source of vitamin D) everyday. A great way to get your fruits and greens is a "green smoothie". Basically you take equal parts fruit (apples, bananas, mangoes, berries, etc.) and greens (spinach, kale, chard, collard greens, etc.), add a little water and/or ice, blend well, and voilà...you've got a great tasting smoothie packed with pretty much every vitamin and mineral known to man. You also get tons of healthy plant fiber, amino acids, phyto-chemicals, and more.