The Study
Integrated metabolomic and transcriptomic analyses suggest that high dietary lipid levels facilitate ovary development through the enhanced arachidonic acid metabolism, cholesterol biosynthesis and steroid hormone synthesis in Chinese sturgeon (Acipenser sinensis)
This study watched what happened to sturgeon given different diets over two years. It can show that higher fat diets were linked to better ovary development, but it can't prove the fat caused it — other factors might be involved.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Scientists fed sturgeon three fish foods with different fat levels to see which helped their eggs grow best.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 59 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This shows that more fat in the diet helps endangered sturgeon prepare for having babies, which could help save the species.
- 2Only the fish food with 18% fat helped sturgeon eggs grow to stage IV.
- 3These fish also had bigger egg cells, more fat droplets, and more fat in their blood.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
British Journal of Nutrition
Year
2019
Authors
X. Leng, Hai Zhou, Qingsong Tan, H. Du, Jinping Wu, Xu-fang Liang, Shan He, Q. Wei
Related Content
Claims (5)
Feeding female Chinese sturgeon a diet with 18% fat helps their ovaries mature fully over two years, but lower-fat diets don’t do the same — so more fat in their food might help these endangered fish reproduce better.
Female Chinese sturgeon on a high-fat diet have bigger egg cells with more fat stored inside them, which might help their eggs grow better early on.
Female Chinese sturgeon fed a high-fat diet with 18% lipids end up with more fat in their blood over time compared to those on lower-fat diets, which means their bodies are holding onto more fat when they eat more fat.
Feeding female Chinese sturgeon a diet with 18% fat might help their ovaries develop better by boosting key body processes that make yolk and support egg growth.
Eating fat from animal foods gives your body cholesterol that it needs to make important hormones, and it might also help keep your blood sugar and stress levels steady.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.