Generally, chia seeds are safe to eat and cause few side effects. Nevertheless, as they're high in fiber, eating too many too quickly may lead to digestive issues like bloating, gas, and abdominal discomfort. Also, because they absorb liquid and expand, it's crucial to eat them after they've been soaked and expanded or ensure you drink plenty of fluids after consuming them dry. If you have a history of swallowing or digestive problems, you should consult your doctor before adding chia seeds to your diet.