Nutrition, is it a science ?
Researchers Who Provided Key Evidence For Gluten Sensitivity Have
Now Thoroughly Shown That It Doesn't Exist
He therefore went to a scientifically rigorous extreme for his next experiment, a level not usually expected in nutrition studies.
Not expected, because nutrition doesn't consider itself a science ?
Subjects would be provided with every single meal for the duration of the trial. Any and all potential dietary triggers for gastrointestinal symptoms would be removed, including lactose (from milk products), certain preservatives like benzoates, propionate, sulfites, and nitrites, and fermentable, poorly absorbed short-chain carbohydrates, also known as FODMAPs. And last, but not least, nine days worth of urine and fecal matter would be collected.
If that's unusual, how are nutrition experiments usually done ?