Durian’s are native to Brunei, Indonesia and Malaysia. However it is grown in other areas with a similar climate.
It is grown in tropical climates and stops growing when temperatures drop below 22 °C (72 °F).
It is often used to flavour sweets such as Malay candy, ice kacang, dodol, lempuk, rose biscuits, and ice cream, milkshakes, mooncakes, Yule logs, and cappuccino.

It is a seasonal fruit, and is quite large with a strong smell and a hard shell with sharp thorns.
So can guinea pigs eat Durians and if they can how much can they eat of them?
Lets take a look at their nutritional data and find out a little more about what’s inside of them.
As usual, we’re particularly interested in their calcium, sugar, phosphourus, fat and acidic content.
Energy 615 kJ (147 kcal)
Carbohydrates 27.09 g
– Dietary fiber 3.8 g
Fat 5.33 g
Protein 1.47 g
Water 65g
Vitamin A 44 IU
Thiamine (vit. B1) 0.374 mg (33%)
Riboflavin (vit. B2) 0.2 mg (17%)
Niacin (vit. B3) 1.074 mg (7%)
Pantothenic acid (B5) 0.23 mg (5%)
Vitamin B6 0.316 mg (24%)
Folate (vit. B9) 36 μg (9%)
Vitamin C 19.7 mg (24%)
Calcium 6 mg (1%)
Iron 0.43 mg (3%)
Magnesium 30 mg (8%)
Manganese 0.325 mg (15%)
Phosphorus 39 mg (6%)
Potassium 436 mg (9%)
Sodium 2 mg (0%)
Zinc 0.28 mg (3%)
Cholesterol 0mg
(source: Wikipedia)
As you can see Durans contain a little phosphourus, a hint of calcium, they are very acidic, have a little fat.
However, they do have quite a bit of vitamin c which is great for guinea pigs.
With this information in mind, they can eat Durans. But they can only eat them in small amounts once a week as anything more than that would give them poorly tummies.