Nutrition science mustn't accept a lower level of evidence.

@article{Fenton2011NutritionSM,
  title={Nutrition science mustn't accept a lower level of evidence.},
  author={Tanis R Fenton and Carol J Fenton},
  journal={Nutrition reviews},
  year={2011},
  volume={69 7},
  pages={413-4; author reply 415-6}
}