On most lists of products containing estrogen, animal products like milk and beef are at the very bottom. Milk, for example, is said to provide 1.2 micrograms of estrogen per 100 grams.
Depends on where you go to get your fix. Starbucks Cold Brew (in stores nationwide since May 2015) and Dunkin' Donuts Cold Brew (in stores nationwide since August 2016) retail for different prices. Cost: Roughly $0.20 per ounce. $3.25 for a grande (16 fluid ounces) according to Starbucks.
Dunkin' Donuts. Last stop was Boston favorite Dunkin' Donuts for their regular Iced Coffee ($2.05) and a Vanilla Coolata ($2.65). Whereas the milk in the coffee at Starbucks and McDonald's tempers the coffee flavor, Dunkin's iced coffee isn't overly milky, and the coffee taste shines through. It's bold, slightly bitter, and strong.