Eating raisins first thing in the morning on an empty stomach may cause an abrupt spike in blood sugar.
They might be uncomfortable or cause bloating if consumed without anything.
In the morning, they should not be the perfect lone star. A quick surge in blood sugar can result from their natural carbohydrates.
When ingested in excess on an empty stomach, their high natural sugar content might cause problems with digestion.
On their own, prunes can cause constipation in certain people due to their natural sugar content.