Water fasting means only drinking water. A dry fast is no water, no food. An absolute dry fast is no water, no food, no showers. A 24 hour dry fast won't kill a

Water fasting means only drinking water. A dry fast is no water, no food. An absolute dry fast is no water, no food, no showers. A 24 hour dry fast won't kill a healthy person - but I wouldn't advise it.