Phytosterols -- a DHT blocker

PHYTOSTEROLS 

Phytosterols, plant-derived sterols similar to human cholesterol, may reduce levels of DHT, according to the Linus Pauling Institute, or LPI. 

The diets of early humans contained many phytosterols; however, modern Western diets are said to be lacking in these beneficial sterols. 

The LPI reports that animal investigations suggest that a diet high in phytosterols may inhibit the enzyme, 5-alpha reductase and block the production of DHT. 

You can obtain phytosterols through food sources, including wheat germ, sesame oil, corn oil, canola oil, peanuts, almonds, macadamia nuts, Brussels sprouts, olive oil and rye bread.

Info source: http://www.livestrong.com/article/302048-foods-and-vitamins-that-stop-dht/%23page=1