13 Jun 2019 --- Foods that look the same on nutrition labels can have vastly different effects on our microbiomes, a recent study has found, further expanding knowledge on the intricate relationship between gut bacteria and overall health. The impact of leafy greens on the gut, for example, can be vastly different from the influence of carrots, despite their nutritional profiles being similar. The researchers have now developed a new approach for measuring and comparing the different foods – based on the gut.