Hello- The semen of the average man today has half the sperm, and of poorer quality, than 50 years ago. This is believed to be caused by exposure to xenoestrogens (PCBs, DDT, dioxin, other pesticides, plastics and industrial pollutants) that mimic the effects of estrogen. You can prevent or minimize the impact of xenoestrogens on your health by doing the following: Avoid plastic containers for food storage, plastic bottles, wraps and utensils. Use office paper products whitened without chlorine. Use only non-bleached coffee filters, paper, napkins and toilet tissue to reduce dioxin exposure. Avoid chlorinated tap water, chlorine bleach and other chlorinated products; use hydrogen peroxide as an alternative. Eat organic food as much as possible to avoid pesticides and herbicides. Avoid synthetic deodorants and cosmetics; use only organic products whenever possible. Avoid animal products with a high fat content that contain hormones, especially conventional milk and dairy products, chicken, beef and pork. Avoid alcohol and caffeine. Avoid fried, charcoal-broiled or barbecued forms of cooking. Eat lots of foods high in antioxidants (carotenes, vitamins A, C, E and selenium) such as green leafy vegetables, kale, carrots, citrus, broccoli, cauliflower and yams.