They may also exhibit signs of poor absorption such as anaemia or other vitamin deficiencies.

Another is failure to put on weight, caused by poor absorption of nutrients.

The oral bioavailability of some drugs may be low due to poor absorption from the gastrointestinal tract.

The poor absorption of fat means that many develop steatorrhea (fatty, offensive stool).

Gastric bypass surgery may also cause a vitamin B deficiency from poor absorption.

Check for poor absorption of nutrients by the digestive tract (malabsorption syndrome).

The biotin in food is usually attached to protein and has relatively poor absorption.

In view of its poor absorption and high local concentration, its site of action seems likely to be within the bowel wall.

Other symptoms may include weight loss caused by poor absorption (malabsorption) of food.

These lead to poor absorption of vitamin B.