What Does a House Lizard Eat? A Comprehensive Guide for Reptile Owners

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House lizards, commonly known as geckos, are fascinating reptiles often found in homes and buildings. These small creatures have unique characteristics, such as the ability to climb walls and ceilings and their distinct chirping sounds. As reptile owners, it is essential to provide proper nutrition to ensure the health and well-being of house lizards. This comprehensive guide will explore the dietary requirements of house lizards, offering practical tips for reptile owners to provide a balanced and nutritious diet for their beloved pets.

Natural Diet of House Lizards

House lizards are insectivores, meaning their diet primarily consists of insects. In their natural habitat, geckos feed on a variety of small insects, including flies, mosquitoes, moths, spiders, and beetles. Replicating this diet in captivity is crucial to meet their nutritional needs adequately.

Staple Foods for House Lizards

Insects should form the staple diet of house lizards. Here are some commonly available and suitable insect options:

  • Crickets: These are a nutritious and readily available food source for house lizards. Offer appropriately sized crickets based on the size of your lizard. Dusting the crickets with calcium and vitamin supplements is recommended before feeding them to ensure a balanced diet.
  • Mealworms: These larvae of darkling beetles are another excellent food option for house lizards. However, they should be fed in moderation as they have a higher fat content compared to other insects. They can be a great occasional treat or a supplemental food source.
  • Waxworms: These soft-bodied moth larvae can be fed occasionally as a treat. They are high in fat and should not be a staple part of the diet but can be beneficial for adding variety and enticing a picky eater.
  • Fruit Flies and Gnats: These tiny insects can be collected or cultured at home, making them a great addition to the lizard’s diet. They are especially suitable for feeding juvenile house lizards due to their small size.

Feeding House Lizards: Guidelines and Tips

To ensure a healthy feeding routine for your house lizard, consider the following guidelines and tips:

  • Feeding Schedule: House lizards are nocturnal creatures, so it is best to offer food during the evening or night when they are most active. Provide food every 1-2 days, adjusting the frequency based on the age and size of your lizard.
  • Proper Portion Size: Offer insects that are appropriately sized for your lizard to prevent choking or digestion issues. The size of the prey should be no larger than the width of the lizard’s head.
  • Gut Loading: It is crucial to provide the insects with a nutritious diet before offering them to your house lizard. Gut loading involves feeding the insects nutritious foods, such as fresh fruits and vegetables or commercial gut-loading diets, to enhance their nutritional value.
  • Dusting: Dusting the insects with calcium and vitamin supplements is essential to ensure your house lizard receives proper nutrition. Calcium supplementation is crucial for bone health, while vitamin supplements help prevent deficiencies.
  • Monitoring Consumption: Pay attention to how much your house lizard is eating. If there is a sudden decrease in appetite or weight loss, consult a reptile veterinarian for a proper diagnosis and guidance.

Supplementing House Lizards’ Diet

While insects are the primary food source for house lizards, it is important to supplement their diet with additional nutrients. Here are a few supplements that can enhance their overall nutrition:

  • Calcium Supplements: Dust insects with a calcium supplement that contains vitamin D3. This helps ensure the lizard receives adequate calcium for bone growth and muscle function.
  • Multivitamin Supplements: Reptile-specific multivitamin supplements should be used occasionally to provide additional vitamins and minerals that may be lacking in the diet.
  • UVB Lighting: Exposure to UVB light is crucial for house lizards as it aids in the synthesis of vitamin D3, which is necessary for calcium absorption. Provide a UVB light source in the enclosure, allowing the lizard to bask for a few hours each day.

Maintaining Hydration Levels for House Lizards

Proper hydration is vital for the health of house lizards. Consider the following tips to ensure your lizard remains hydrated:

  • Water Dish: Provide a shallow dish of clean, chlorine-free water in the enclosure. House lizards may drink directly from the dish or lick water droplets from surfaces.
  • Mist the Enclosure: Lightly misting the enclosure with water helps increase humidity levels and provides an additional source of water for your lizard. Ensure the enclosure does not become too damp, as excessive moisture can lead to respiratory issues.
  • Monitoring Hydration: Observe your house lizard for signs of dehydration, such as sunken eyes, wrinkled skin, or decreased activity. If you suspect dehydration, consult a reptile veterinarian for appropriate intervention.

Common Mistakes to Avoid in House Lizard Nutrition

To provide optimal nutrition for your house lizard, avoid the following common mistakes:

  • Feeding Inappropriate Food: House lizards should not be fed fruits, vegetables, or processed human foods. Stick to their natural diet of insects to ensure their nutritional needs are met.
  • Overfeeding or Underfeeding: Finding the right balance in feeding is crucial. Overfeeding can lead to obesity and health issues, while underfeeding can result in malnutrition and stunted growth.
  • Neglecting Calcium and Vitamin Supplements: Failure to provide proper supplementation can result in metabolic bone disease and other deficiencies. Always ensure the insects are adequately dusted with calcium and vitamin supplements.


Understanding the dietary requirements of house lizards is essential for their overall health and well-being. By providing a diet consisting of appropriate insects, supplementing with calcium and vitamins, and maintaining proper hydration levels, reptile owners can ensure their house lizards thrive in captivity. Observe your lizard’s eating habits and consult a reptile veterinarian if you have any concerns or questions regarding their nutrition. With proper care and attention, your house lizard will enjoy a long, healthy, and happy life in your home.

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