According to researchers from the U.K. and the U.S., a person’s gut bacteria is also a factor in the effectiveness of his dietary change.
For the study, a research team from Imperial College London and John Hopkins Universityin the U.S. collected at least 160 urine samples from participants with pre-hypertension and stage 1 hypertension at the beginning of the clinical trials.
They were then subjected to three so-called OmniHeart diets, which have similar nutrient compositions with the Dietary Approaches to Stop Hypertension (DASH) Plan, save from some variations in macronutrient composition. To note, the OmniCarb diet had a 58 percent kcal from carbohydrate, 15 percent from protein, and 27 percent from fat; the other two diets took 10 percent of calories from carbohydrate and added it either to proteins or monounsaturated fats. Individuals were randomly assigned to the diets and were advised to stick to their plans for six weeks. Samples were then collected after six weeks for analysis.
Based on the results, all three diets resulted in similar changes in the urinary metabolic profiles of most of the participants, with the exception of some. In particular, the team found out that blood pressure is associated with six urinary metabolites that were found in the diet. (Related: How gut bacteria can make you fat, or help you lose weight.)
According to the researchers, this adds more weight to evidence that claims gut microbiota can influence blood pressure. This data, they add, could be used in future studies by diabetologists, cardiologists, and dieticians as they look for new approaches to understanding how a person responds to certain types of diets, as well as checking their adherence.