The Claim
The isotopic signature of Neanderthals may indicate dietary reliance on fat-rich, maggot-infested stored animal tissues rather than fresh lean meat, as maggots supply protein with elevated δ¹⁵N values and substantial fat, which aligns with the metabolic constraints of hominins facing limits on protein toxicity.
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.
Neanderthal isotopic data may reflect a diet that included stored animal carcasses infested with maggots, because these maggots provided both high-protein and high-fat nutrients, helping hominins avoid the harmful effects of consuming too much lean protein.
See the scientific wording
The isotopic signal of Neanderthals may reflect consumption of fat-rich, maggot-infested stored animal foods rather than fresh lean meat, because maggots provide both high δ¹⁵N protein and substantial fat content, aligning with the nutritional needs of hominins constrained by protein toxicity limits.
When animal tissue starts to rot, bacteria break down proteins and release lighter nitrogen atoms into the air, leaving behind heavier nitrogen atoms in the leftover goo. Flies lay eggs in this rotting meat, and the baby flies (maggots) eat the goo, absorbing the heavy nitrogen into their own bodies. When humans eat these maggot-filled tissues, the heavy nitrogen gets stored in their bones, making their isotopic signature look like they ate a lot of high-protein food—even though they were actually eating fat-rich, rotting meat with lots of maggots.
What the research says
1 studyStudy: Neanderthals, hypercarnivores, and maggots: Insights from stable nitrogen isotopes
This study found that maggots in rotting meat have very high levels of a specific nitrogen isotope, which is what scientists see in Neanderthal bones. So maybe Neanderthals ate this maggot-infested meat, not just fresh meat, and that’s why their bones show this signal.
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.