Except for some soft meat near the bottom that can't be eaten, all others can be eaten.
The snail meat is small, but not every part is edible, we usually eat, mainly near the mouth of the snail a piece of hard tough meat.
And some of the soft parts near the bottom are the innards of the snail, because this part is more prone to harbor some harmful substances and parasites, coupled with the more dirty, so generally do not eat these.
Expanded Information
Dietary Precautions When Eating Snails
1, when cooking snail meat, it should be sauteed for at least 20 minutes or more to prevent dysentery and parasitic infection.
2, conch brain nerve secretion of substances can cause food poisoning, need to remove the head before eating.
3, snails should not be eaten with winter melon, melon, fungus and sugar, and should not be taken with the Chinese medicine mealybugs, western medicine hygromycin.
4, snails may have parasites inside, must be heated at high temperature before eating. And snails are cold, usually the spleen and stomach is cold patients are best not to eat.
5, eat snails do not drink alcohol. It is not suitable to eat with soybean products, otherwise it is easy to generate stones.
People's Daily Online - Autumn snail meat is the most fertile eating attention to 5 points
Baidu Encyclopedia - snail