This article does a decent job summing up why it’s difficult to conduct good nutritional research.
- It’s not practical to run randomized trials for most big nutrition questions.
- Instead, nutrition researchers have to rely on observational studies — which are rife with uncertainty.
- Another difficulty: Many nutrition studies rely on (wildly imprecise) food surveys.
- More complications: People and food are diverse.
- Conflict of interest is a huge problem in nutrition research.
- Even with all those faults, nutrition science isn’t futile.
When it comes to deciding what to feed Nora, I want to take an evidence-based approach, but focusing solely on randomized trials completely misses the forest for the trees. So there’s good reason to look to food culture and food traditions instead.