Chia seeds absorb water and swell up in the digestive tract, potentially leading to dehydration if not consumed with an adequate amount of fluids.
Excessive chia seed consumption can lead to bloating, gas and abdominal discomfort due to their high fibre content.
The high fibre content can also cause constipation if chia seeds are not consumed with sufficient water.
Chia seeds are rich in omega-3 fatty acids, which can have a blood-thinning effect and may increase the risk of bleeding, especially in individuals taking blood-thinning medications.
In rare cases, consuming large amounts of chia seeds without adequate fluid intake may lead to a blockage in the oesophagus, intestines or bowel, especially in people with a history of swallowing difficulties or bowel disorders.
Some people may be allergic to chia seeds, leading to symptoms such as itching, hives or swelling, particularly if consumed in large quantities.