1. Neon-Colored Drinks
Animal testing has shown that brominated vegetable oil, a common ingredient in both citrus-flavored flavored sodas and electrolyte-replenishing drinks can cause testicular damage. Bromine has also been connected with impotence and low sex drive in men. So if your guy is a fan, it might be time to get him to cut back.
2. Licorice
In a study published by the New England Journal of Medicine, researchers found that men's testosterone levels dropped dramatically when they were given licorice supplements to eat. Random, right?
Related: How to Kiss Him All Over
3. Forgetting to Floss
Not only does flossing keep your choppers healthy, according to the Journal of Periodontology, men who don't regularly floss their teeth have a higher chance of erectile dysfunction than men who do.
