Also known as Boston lettuce, butterhead lettuce is known for its large, ruffle outer leaves and it’s blanched head.
It is tended to be grown a lot throughout Europe but is eaten around the world.
So can guinea pigs eat butterhead lettuce, and if they can how much of it can they eat?
Lets take a look at its nutritional data and find out more.
In particular, its calcium, fat, sugar, phosphourus, and acidic content is of interest as far as guinea pigs are concerned.
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Nutritional value per 100 g (3.5 oz)
Energy 55 kJ (13 kcal)
Carbohydrates 2.23 g
– Sugars 0.94
– Dietary fibre 1.1 g
Fat 0.22 g
Protein 1.35 g
Water 95.63 g
Vitamin A equiv. 166 μg (21%)
– beta-carotene 1987 μg (18%)
– lutein and zeaxanthin 1223 μg
Thiamine (vit. B1) 0.057 mg (5%)
Riboflavin (vit. B2) 0.062 mg (5%)
Pantothenic acid (B5) 0.15 mg (3%)
Vitamin B6 0.082 mg (6%)
Folate (vit. B9) 73 μg (18%)
Vitamin C 3.7 mg (4%)
Vitamin E 0.18 mg (1%)
Vitamin K 102.3 μg (97%)
Calcium 35 mg (4%)
Iron 1.24 mg (10%)
Magnesium 13 mg (4%)
Manganese 0.179 mg (9%)
Phosphorus 33 mg (5%)
Potassium 238 mg (5%)
Sodium 5 mg (0%)
Zinc 0.2 mg (2%)
As you can see butterhead lettuce contains a little phosphorus and calcium, and a a little acidic, it contains a hint of fat and some sugar.
It’s vitamin c content is also not that high.
With that in mind, guinea pigs can eat butterhead lettuce but only one to two times a week due to its phosphorus and calcium content. It doesn’t offer that great a nutritinal benefit to gujnea pugs and there are definitely better veggies for them to eat.