As you’ve probably had it drilled into your head already, sugar is the enemy and even looking at a Diet Coke causes cancer. But a new study published in The Journal of Sexual Medicine has a whole new level of disturbing news on the sugar front. Turns out that sugar consumed as a child may be the culprit behind adult erection difficulties. (Not to be gross, but Moms, take note.)

According to Women’s Health magazine, researchers tested the effects of sugar on the male species using newborn rats. They fed them either regular water, or water with varying dosages of fructose. After eight weeks, researchers tested the rats’ blood-glucose levels, tesosterone levels, and erectile function. Rats that were given fructose water had lower testosterone levels as well as less intracavernous pressure and mean arterial pressure — which ultimately means they might not have the blood flow for a boner.

Since rat results aren’t always directly translated to humans, there’s no need to cancel Halloween entirely – yet. Until then, it’s probably still not a good idea to feed your newborn candy anyway.

READ MORE: 5 Surprisingly Easy Ways to Cut Back on Sugar