Black soldier fly larvae meal can be safely fed to giant anteaters at levels up to 36 percent of their diet without harming digestion or overall health, according to a 2026 research study of four anteaters. The insects were digested just as well as traditional foods, and most blood work remained normal. However, very high amounts affected some blood proteins, so careful protein measurement is needed when formulating these diets.
Scientists tested whether giant anteaters in zoos could eat food made from black soldier fly larvae, insects that are easier to farm than the ants and termites these animals normally eat in the wild. According to Gram Research analysis, four female anteaters were fed different amounts of this insect meal mixed into their regular food over several weeks. The results showed that the anteaters digested the insect-based food just as well as regular diets, and their blood work stayed healthy. This discovery could help zoos and conservation programs feed giant anteaters better and support efforts to protect this endangered species.
Key Statistics
A 2026 study of four giant anteaters found that diets containing up to 36 percent black soldier fly larvae meal were digested as effectively as control diets, with digestibility values remaining high across all treatment levels.
Research on giant anteaters showed that higher inclusion levels of insect meal at 54 percent were associated with reduced total plasma protein and coagulation-related proteins, likely due to overestimation of crude protein content from chitin.
A controlled feeding trial with four female giant anteaters demonstrated that black soldier fly larvae meal inclusion did not significantly affect feed intake, water consumption, or faecal output across any dietary treatment level.
The Quick Take
- What they studied: Whether giant anteaters can safely eat food made from black soldier fly larvae, a type of insect that could replace their natural diet of ants and termites.
- Who participated: Four adult female giant anteaters living in human care were fed different diets over time in a controlled study design.
- Key finding: Giant anteaters digested the insect-based food very well at all levels tested, with no problems in their blood work or overall health, though very high amounts affected some blood proteins.
- What it means for you: This research helps zoos and wildlife programs create better nutrition plans for giant anteaters. While this study was small and focused on zoo animals, it suggests insect-based foods could be a sustainable way to feed endangered species in captivity.
The Research Details
Researchers designed this study like a rotating menu experiment, called a Latin square design. Four female giant anteaters were each fed four different diets over time, with each diet containing a different amount of black soldier fly larvae meal: none, 18 percent, 36 percent, or 54 percent. The scientists measured how much the anteaters ate and drank, checked their poop consistency, and took blood samples to look at various health markers. This approach lets researchers see how each animal responds to different food levels while using fewer animals.
The black soldier fly larvae meal was defatted, meaning most of the fat was removed before it was added to the food. The researchers tracked digestibility, which means how well the anteaters’ bodies broke down and used the nutrients from the food. They also monitored blood cells and chemicals to make sure the insect-based diet didn’t cause any health problems.
Giant anteaters naturally eat only ants and termites, which are hard to provide consistently in zoos. Finding alternative foods that anteaters can digest well is important for their health and survival in captivity. This research matters because it tests whether an insect that’s easier to farm could replace wild-caught insects, making conservation programs more practical and sustainable.
This study was small, using only four animals, which limits how much we can generalize the findings to all giant anteaters. However, the controlled design and careful measurement of multiple health markers make the results reliable for these specific animals. The study was published in a peer-reviewed journal focused on animal nutrition, suggesting it met scientific standards. The researchers were transparent about limitations related to how protein was measured in the insect meal.
What the Results Show
The giant anteaters ate similar amounts of food regardless of how much insect meal was included, and their digestive systems worked equally well with all four diet versions. The digestibility values, which measure how much nutrition the anteaters got from their food, were high across all treatments, meaning their bodies adapted well to the insect-based ingredients.
Most blood tests stayed within normal ranges for all four diet versions, suggesting the anteaters remained healthy. The researchers found no significant problems with how much water the anteaters drank, their poop consistency, or the amount of poop they produced.
However, when the insect meal made up 36 percent or 54 percent of the diet, certain blood proteins decreased. This happened because the measurement method overestimated the actual protein content, likely because it counted chitin, a hard substance in insect shells that isn’t digestible protein. At the highest insect meal level, the anteaters also showed a slight increase in eosinophils, a type of white blood cell that can indicate an immune response.
The study revealed that the anteaters’ bodies handled the extruded, or pressed and heated, insect-based food well. No major digestive upset occurred at any inclusion level. The consistency of their poop remained normal, which is a good sign that their digestive systems weren’t stressed. Most other blood markers, including those related to liver and kidney function, stayed within expected ranges, indicating no organ damage from the diet change.
Previous research on insect-based diets for other animals has shown mixed results, with some species tolerating them well and others having digestive problems. This study adds to growing evidence that black soldier fly larvae can be a viable ingredient in animal diets. However, most prior work focused on livestock or pets, not specialized eaters like giant anteaters. The finding that giant anteaters can digest insect meal as well as traditional diets is encouraging and somewhat surprising given their highly specialized natural diet.
The study used only four animals, all females, so results may not apply to male anteaters or to the species as a whole. The study lasted a limited time, so we don’t know if long-term feeding of insect meal would cause different effects. The protein measurement method overestimated actual digestible protein because it counted chitin, which the anteaters can’t digest. The researchers couldn’t test the highest insect meal level for very long periods. Finally, this study was done in a controlled zoo setting, so results may differ for wild anteaters or different populations.
The Bottom Line
Black soldier fly larvae meal can be safely included in giant anteater diets at levels up to 36 percent with high confidence based on this research. At 54 percent inclusion, the diet remains safe but requires careful protein evaluation. Zoo nutritionists should work with veterinarians to monitor blood protein levels if using high amounts of insect meal. This approach is recommended as a sustainable feeding strategy for conservation programs.
Zoo managers and wildlife conservation programs caring for giant anteaters should pay attention to these findings. Veterinarians specializing in exotic animals may find this useful for dietary planning. Wildlife researchers studying sustainable feeding methods for endangered species would benefit from this work. General pet owners should not apply these findings, as giant anteaters are not pets and have very specialized care needs.
The study measured changes over weeks, and the anteaters showed stable digestion and blood work throughout. Benefits for zoo nutrition programs could be implemented immediately, though individual animals should be monitored for several weeks when switching to insect-based diets. Long-term health benefits would likely take months to fully assess.
Frequently Asked Questions
Can giant anteaters eat food made from black soldier fly larvae?
Yes, giant anteaters can safely eat black soldier fly larvae meal at levels up to 36 percent of their diet. A 2026 study found they digested this insect-based food as well as traditional diets, with no major health problems in blood work or digestion.
What happens if you feed giant anteaters too much insect meal?
At very high levels (54 percent), insect meal reduced certain blood proteins in giant anteaters. This occurred because the protein measurement method counted chitin, an indigestible shell material, as protein. Careful protein evaluation is needed at higher inclusion levels.
Why would zoos use black soldier fly larvae instead of real ants for anteaters?
Black soldier fly larvae are easier and cheaper to farm than collecting wild ants and termites. Using farmed insects supports sustainable conservation programs and makes it more practical for zoos to feed giant anteaters consistently.
How long does it take to see if an anteater is healthy on insect-based food?
The 2026 study measured digestibility and blood work over several weeks and found stable results throughout. Zoo managers should monitor individual anteaters for at least 4 to 6 weeks when introducing insect-based diets before making long-term decisions.
Are there any risks to feeding giant anteaters insect meal?
The main risk at high inclusion levels is reduced blood protein content. Otherwise, the study found no significant problems with digestion, organ function, or overall health. Monitoring blood work helps catch any issues early.
Want to Apply This Research?
- If managing a captive anteater, track weekly food intake in grams, water consumption in milliliters, and poop consistency on a 1-5 scale. Record blood test results for total protein and eosinophil counts every 4 to 6 weeks when introducing insect-based diets.
- Zoo nutritionists can use this research to gradually introduce black soldier fly larvae meal into anteater diets, starting at 18 percent and monitoring for any changes in eating behavior or digestion before increasing to higher levels.
- Establish a baseline of normal blood values for each animal before diet changes. Retest blood markers at 4 weeks, 8 weeks, and 12 weeks after introducing insect meal. Track weight monthly and document any changes in appetite, activity level, or poop quality in a dedicated log.
This research applies specifically to captive giant anteaters and was conducted on a small sample of four animals. These findings should not be applied to wild anteaters or other species without additional research. Zoo managers and veterinarians should consult with exotic animal nutrition specialists before making dietary changes for individual animals. Blood work and health monitoring are essential when introducing new feed ingredients. This article is for informational purposes and does not replace professional veterinary or nutritional advice.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.