Romaine or cos lettuce is a variety of lettuce that grows in a tall head of sturdy leaves with firm ribs down their centers.
Unlike most lettuces, it is tolerant of heat.
So can hamsters eat romaine lettuce?
Let’s take a look at its nutritional data and find out more.
In particular, its acidic, water, sugar, fat, salt, calcium, and phosphorus is of most interest as far as hamsters are concerned.
Nutritional value per 100 g (3.5 oz)
Energy 72 kJ (17 kcal)
Dietary fibre 2.1 g
Vitamin A equiv. (36%) 290 μg
Folate (B9) (34%) 136 μg
Vitamin C (29%) 24 mg
Calcium (3%) 33 mg
Iron (7%) 0.97 mg
Phosphorus (4%) 30 mg
Potassium (5%) 247 mg
Water 95 g
As you can see, romaine lettuce contains a lot of water and acidic content, a little calcium, and a hint of fat.
This means that it is not the best food for hamsters to eat due to its high water and acidic content.
If they nibble on it they should be fine, but there are better foods for hamsters to eat.