The Claim
Fly larvae feeding on decomposing human muscle tissue exhibit nitrogen isotope values (δ¹⁵N) ranging from 5.4‰ to 43.2‰, which are substantially higher than those of herbivores (average 5.2‰) and carnivores (average 8.8‰), and consumption of these larvae may substantially elevate the δ¹⁵N signature in human consumers without requiring a hypercarnivorous diet.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Fly larvae that feed on decaying human muscle tissue have unusually high levels of a nitrogen isotope called δ¹⁵N. If humans consume these larvae, their own δ¹⁵N levels may rise significantly, even without eating large amounts of meat.
See the scientific wording
Fly larvae feeding on decomposing human muscle tissue exhibit nitrogen isotope values (δ¹⁵N) ranging from 5.4‰ to 43.2‰, far exceeding the δ¹⁵N values of herbivores (average 5.2‰) and carnivores (average 8.8‰), suggesting that consumption of such larvae could substantially elevate the δ¹⁵N signature in human consumers without requiring a hypercarnivorous diet.
When flesh starts to rot, bacteria break down proteins and let out a lot of light nitrogen gas, leaving behind more heavy nitrogen. Fly larvae eat this rotting flesh and the sticky liquid around it, soaking up the heavy nitrogen, which gets locked into their bodies as they grow. When humans eat these larvae, they take in that same heavy nitrogen, making their bodies show unusually high levels of it—even if they didn’t eat much meat.
What the research says
1 studyStudy: Neanderthals, hypercarnivores, and maggots: Insights from stable nitrogen isotopes
These fly larvae that eat rotting meat soak up a lot of a special nitrogen form, and if humans ate them, their bodies would show the same high levels—even if they didn’t eat much meat. The study shows this could explain why ancient humans had high nitrogen readings without being top meat-eaters.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.