When giving up sugar, you might notice that you're feeling physically run down. Some people get headaches. Other possible physical withdrawal symptoms include: light-headedness or dizziness.
How long do sugar withdrawal symptoms last?
Some people find that their symptoms last from a few days to a couple of weeks. As your body adapts to a low added sugar diet over time and your added sugar intake becomes less frequent , the less intense your symptoms and cravings for sugar are likely to be.