Updated 25th August 2016. So blueberries….I love them on desserts and yes, in muffins as well
They are a great delicacy and are enjoyed the world over.
So can guinea pigs eat them and if they can, how many can they eat?

Lets have a look as usual at their nutritional data and find out more about them.
I’m particularly looking for their phosphorus, fats, sugar, Oxelate acid, and calcium levels. Not to mention a healthy amount of vitamin a and c.
Energy 240 kJ (57 kcal)
Carbohydrates 14.49 g
– Sugars 9.96 g
– Dietary fiber 2.4 g
Fat 0.33 g
Protein 0.74 g
Vitamin A 54 IU
– beta-carotene 32 μg (0%)
– lutein and zeaxanthin 80 μg
Thiamine (vit. B1) 0.037 mg (3%)
Riboflavin (vit. B2) 0.041 mg (3%)
Niacin (vit. B3) 0.418 mg (3%)
Pantothenic acid (B5) 0.124 mg (2%)
Vitamin B6 0.052 mg (4%)
Folate (vit. B9) 6 μg (2%)
Vitamin C 9.7 mg (12%)
Vitamin E 0.57 mg (4%)
Vitamin K 19.3 μg (18%)
Calcium 6 mg (1%)
Iron 0.28 mg (2%)
Magnesium 6 mg (2%)
Manganese 0.336 mg (16%)
Phosphorus 12 mg (2%)
Potassium 77 mg (2%)
Sodium 1 mg (0%)
Zinc 0.16 mg (2%)
source: wikipedia
So taking into account all the data here, it contains small amounts of phosphorus and fats, but not a trace of oxelate acid. But it does contain quite a lot of sugar.
However, there are very good amounts of vitamin c.
With that in mind, Guinea pigs can eat blueberries, but only one, twice a week at most because of their sugar content. If they have too many they will get tummy problems, so do take care.
image flickr
Can guinea pigs eat dried blueberries?
Yes they can but it does still contain high amounts of sugar so only in small amounts.
Can guinea pigs eat frozen blueberries?
Unfortunately, they can’t eat any frozen foods.