Can swallowing watermelon seeds hurt you?
Besides, is it safe to eat raw watermelon seeds?
You can eat watermelon seeds raw, straight from the fruit. They're nontoxic, and the seeds won't be able to grow in your stomach acid. If anything raw watermelon seeds, though edible, are more of a bother than an actually delicious snack. But you don't have to do much to make watermelon seeds totally delicious.
Secondly, can watermelon seeds kill you?
The accepted answer says that seeds not commonly sold in stores have no nutrition, are bitter, or are poisonous. This is incorrect. Watermelon, cantaloupe, apple, peach, apricot, and so forth seeds are packed full of nutrients; even more than most commercially sold seeds.
These contain a cyanide and sugar compound known as amygdalin. When metabolized it breaks down into hydrogen cyanide (HCN). In all cases the toxin is inside the seeds and will not be exposed to the body unless the seeds are chewed.