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Our Diet

Here at Pacific Gems Rattery we offer a diet mainly comprised of our own mix, fresh vegetables/fruits (daily) and an Organic Dried herb Mix.

Our mix is offered in a bowl and changed daily. In the evening we make a large plate with fruits and veggies and leave it overnight. An example of what we add is Lacinato Kale, peas, apples, sweet potato (cooked), carrots, sweet peppers, beans or lentils (cooked) and a sprinkle of dried worms.

Our rats LOVE their fresh veggies/fruits and by the morning the whole plate is clean and there's usually nothing left behind! 

Follow us on FACEBOOK  and get a glimpse of what our rats eat on a daily basis!

We also recommend Lab Blocks supplemented with fresh veggies/fruits as the main diet for our adopters. Here are some of our favorite blocks:

Lab Blocks


Envigo (formerly Harlan) Teklad lab blocks are designed specifically for lab rats and are one of the highest quality foods you can buy. Even though they look like particle board, Envigo Teklad lab blocks are a nutritionally complete food. They contain all the essential vitamins, minerals, amino acids, fatty acids and macronutrients your rat needs.

In June of 2015 Harlan Laboratories merged with Huntingdon Life Sciences to form the company, Envigo. 

Out of the many rodent diets they make, there are three Teklad lab block formulas most widely used for pet rats.

Harlan Teklad lab blocks are nutritionally balanced and complete

  • Teklad 2018 – for pregnant, nursing or growing rats up to 8 months

  • Teklad 2014 – maintenance formula for the average size adult rat, also good for overweight and/or older rats

The above two Teklad lab block formulas contain no fish meal, meat meals or meat by-products, no alfalfa meal and reduced or eliminated soybean meal. (Soybean meal is only included in the ingredients of Teklad 2018.) The last two digits of each of the Teklad diets above corresponds to the percentage of protein in each diet. Teklad believes low fat, low protein diets promote longevity and normal body weight in rodents. The Envigo Teklad lab blocks specified above have only 4-6% fat.

Another diet, Teklad 8604, has soybean meal listed as the first ingredient and has a protein content of 24.3%. Teklad 8604 is designed to support gestation, lactation, and growth of rodents. This diet is a good one for young unspayed female rats since soybean meal is listed as the first ingredient.

Oxbow Essentials Regal Rat

Oxbow Animal Health offers two rat diets. One is for adults and the other is for young, pregnant or nursing rats.

Oxbow’s adult, Regal Rat, diet is nutritionally complete and is low-fat to help maintain an ideal weight. The first five ingredients are Whole Brown Rice, Oat Groats, Wheat Bran, Wheat, and Soybean Meal.

For young rats, Oxbow Essentials Mouse & Young Rat Food contains 18% protein. Besides being used as a rat food,this diet can be fed to mice of all ages. Oxbow’s young rat diet contains added vitamins and minerals and is nutritionally complete. This diet’s first ingredient listed is corn, however, so it’s not ideal. The  first five ingredients listed are Ground Corn, Soybean Meal, Wheat Middlings, Soybean Hulls, and Dried Whey. It contains no artificial preservatives, colors or flavors. It’s in the shape of a lab block. 


Mazuri Rat & Mouse Diet is their only pet rat formulation. They promote it as meeting the nutritional requirements for “breeding and non-breeding rodents”.  It comes in the form of a lab block and, at 23%, this diet is very high in protein. Because of the high level of protein, I would only feed this diet to young rats since many experts advocate feeding decreasing levels of protein as a rat ages.

Fresh Fruits and Vegetables

Fruit and veggies are an important part of a rat’s diet. All of our rats eat a big bowl of fresh fruits and veggies daily! Pretty much all fruit and veggies are fine to feed but particular favorites include:

  • Apples

  • Apricots

  • Avocado

  • Banana

  • Blackberries

  • Dates

  • Grapes

  • Watermelon

  • Peach

  • Pear

  • Plums

  • Prunes

  • Raspberries

  • Strawberries

  • Bean sprouts

  • Broccoli

  • Carrot

  • Capsicum

  • Cauliflower

  • Corn

  • Cucumber

  • Eggplant

  • Lettuce

  • Peas

  • Potatoes

  • Pumpkin

  • Siverbeet

  • Zucchini

Do Not Feed List


  • Anything moldy as mold and bacteria can kill rats

  • Apple seeds (they contain cyanide)

  • Avocado seeds and skin (these are toxic)

  • Beet tops

  • Blue Cheese

  • Carbonated drinks as rats can’t burp out the gasses

  • Green bananas

  • Green potato skins and eyes

  • Licorice

  • Orange and orange juice (in very large quantities it can contribute to cancer in male rats, though it’s OK for females)

  • Raw peanuts

  • Poppy seeds

Organic Dried Herb Mix

Our Organic Dried Herb Mix is a powerful daily general broad-spectrum whole-food treat. It is a deep and extensive nutrition boost for your rat.  It has anti-inflamtory and anti-fungal properties plus is packed with Vit A, C, E, K, B6, B12, Iron, Calcium, Magnesium, Manganese, Folate and Potassium. It is also an immune system builder, anti-bacterial and a detoxifier. You can purchase our Organic Dried Herb Mix from us. Visit our store for details!

Our mix includes a variety of organic dried herbs such as Dandelion, Peppermint, Egyptian Basil, Oregano, Garlic Flake, Cinnamon Powder, Parsley, Eucalyptus, Oat straw, Plantain, Red Clover Flower Buds, Echinacea, Milk Thistle, Echinacea, Pau D'Arco, Elderberry, Lavender, Chickweed and Plantain.