Amount of daily food for guinea pigs

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Guinea pigs are very good animals as pets since they do not need much care in general and are very sociable. To feed them and have a correct growth, it is necessary to know their diet well since it consists of 3 types of food mainly: hay, vegetables and fruits, and feed. We cannot feed our guinea pig in a healthy way if we do not give it one of these three things, so they are all essential.

In this AnimalWised article on daily amount of food for guinea pigs we are going to explain the basic nutritional requirements and food needs of young and adult guinea pigs. In addition, you will also find lists of good vegetables and fruits, and prohibited foods for guinea pigs, so that you have all the information on how to feed your beloved pet.

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  1. Nutritional requirements of guinea pigs
  2. How much should a young guinea pig eat?
  3. How much should an adult guinea pig eat?

Nutritional requirements of guinea pigs

From 3 weeks of age, in which guinea pigs can be weaned and started to feed them, these animals need a series of essential foods For their correct diet, regardless of their age, although the amount of them will vary, depending on whether they are younger or more adult.


Our guinea pig, apart from always having clean water, must also have unlimited fresh hay, since these rodents (like many others) never stop growing their front teeth, and the hay will help them to wear them down continuously. Furthermore, guinea pigs do not have intestinal motility unlike other animals, and as need to eat at least every 4 hours, This food helps them so that their digestive system does not stop working and thus they do not have health problems, because it contains a large percentage of fiber. Thus, hay must always be available for our guinea pig since it constitutes approximately 70% of their daily diet..

Hay should not be confused with alfalfa, that is given only to young or sick guinea pigs, pregnant or nursing, since it is a food that apart from fiber, has a high calcium content, and can produce stones in the bladder of adult and healthy guinea pigs.

Vegetables and fruits

Unfortunately, guinea pigs are unable to produce vitamin C by themselves, so they need to obtain it externally, through a correct diet. For this, we can give you a wide variety of green leafy vegetables that contain a considerable amount of this vitamin such as chard, lamb's lettuce, lettuce (except iceberg), carrot leaves, parsley (although without going overboard because it is very diuretic ) or spinach. Other vegetables such as carrots or red pepper (more than green), will also help us with a great contribution of vitamin C. And of fruits we have oranges, tomatoes, apples or kiwis for example, which are also low in sugars, and that is what interests us for our guinea pigs.

It should be said that fruits and vegetables need to be washed and cleaned that we are going to give them to our pets so that they do not get intoxicated, and if possible, not give them whole fruits, but in portions and a little every day. If you want to know more about this topic, you can look at this list of good fruits and vegetables for guinea pigs or this one of prohibited foods for guinea pigs.

I think

Finally we have the I think, that must be specific for guinea pigs, since they are 100% herbivorous and do not tolerate animal proteins, which other feeds for rodents in general usually contain. They must also contain an extra supply of fiber and vitamin C, although once opened, this vitamin takes very little time to evaporate, so we must keep the feed in a cool, dry and well-closed place. And we must avoid that it contains the least possible sugars, fats and chemicals, so that our guinea pig grows in the healthiest way.

How much should a young guinea pig eat?

It is considered to a young guinea pig up to 15 months old. As we have said before, the amount of water and hay is unlimited, but it is recommended that we give fibrous vegetables a little twice a day, once in the morning and in the afternoon. Fruits on the other hand, it is recommended that we give them a portion one day if one day not, since if we give them every day, our pet will begin to gain weight quickly. The ideal is to make a small mixed salad with 2 types of vegetables or a vegetable and a fruit, for example.

As for the feed, which has to constitute 10% of the diet of young guinea pigs, it is recommended an amount of feed of 20 grams per day (two tablespoons), divided into two batches like vegetables, for rodents weighing up to 300 grams.

How much should an adult guinea pig eat?

After 15 months of age, guinea pigs can already be considered adults, and therefore we must change their amount and percentage of daily food a little. Like for young girls, fresh hay must always be available 24 hours a day and makes up 70% of their diet, but for adult guinea pigs the daily intake of vegetables and fruits will constitute 25%, Y the feed will go to 5% since it is now considered an extra, thus giving them a single serving a day, usually in the morning.

Even so, the amount of feed will vary depending on the weight of our animal:

  • If you weigh up to 500 grams, you will get 45 grams of feed per day
  • If you weigh more than 500 grams, you will get 60 grams of feed per day.

It should be said that once the guinea pig has finished the feed, it will not be replenished again until the next day.

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