6. Altered taste and smell
When you smoke regularly, your senses of taste and smell may be a bit “off.” Not only does that interfere with your enjoyment of food, it may actually lead you to add too much salt or sugar when you’re eating, in an attempt to make the taste stronger. Research shows about one in five smokers have a less precise sense of taste and smell. Fortunately, the effect may be reversible if you kick the habit.