4 or extra servings per week of baked, boiled, or mashed potatoes is linked to an 11 per cent elevated danger of hypertension in contrast with lower than one serving a month in girls, researchers discovered.
In addition they discovered that women and men who ate 4 or extra servings per week of French fries had a 17 per cent greater danger of hypertension.
However consuming crisps had no impact, the research, printed within the British Medical Journal (BMJ), discovered.
The researchers additionally famous that changing one serving a day of potatoes with one serving of non-starchy greens led to a 7 per cent drop within the danger of hypertension.
The staff, from the Brigham and Ladies’s Hospital and Harvard Medical College in Boston, Massachusetts, urged the excessive glycaemic index (GI) of potatoes could possibly be responsible.
Excessive-GI meals launch power extra rapidly and due to this fact increase blood sugar extra rapidly.
The staff stated high-GI meals had been related to dysfunction of cells within the physique, oxidative stress, and irritation, “all doubtlessly necessary mechanisms within the growth of hypertension (hypertension)”.
The staff took account of things akin to the load of individuals within the research, however the outcomes nonetheless held true.
General, the specialists analysed knowledge from greater than 187,000 women and men from three massive US research over 20 years.
In January, a separate research discovered that girls who get pleasure from potatoes could also be at elevated danger of struggling diabetes in being pregnant.
Those that eat two to 4 servings of potatoes per week could also be round 27 per cent extra prone to undergo diabetes in being pregnant, even when considering their weight, it stated.
Even one serving per week appeared to extend the danger by 20 per cent in contrast with girls consuming lower than one serving per week, as soon as physique mass index (BMI) was taken into consideration.
These consuming greater than 5 servings per week had a 50 per cent elevated danger.
When girls substituted two servings per week with different greens, pulses akin to beans, lentils and peas, and complete grain meals, that they had a 9 per cent to 12 per cent decrease danger.
Commenting on the research, Victoria Taylor, senior dietitian on the British Coronary heart Basis, stated: “Such a research can solely present an affiliation, not trigger and impact. We can’t due to this fact conclude thatpotatoes trigger hypertension and we can’t clarify the reason for the consequences seen within the research amongst greater customers of potatoes.
“Though a better consumption of potatoes, akin to mashed potatoes or French Fries, was related to hypertension, it’s nonetheless doable that different elements within the weight-reduction plan or way of life are additionally affecting the outcomes, particularly as each the blood strain and meals frequency had been self-reported.
“It is usually necessary to notice this can be a research from the US the place dietary steerage and suggestions range from the UK. For instance, within the UK white potatoes will not be included within the 5-a-day suggestions for fruit and vegetable consumption. Whereas potatoes are a part of the starchy carbohydrates part of the Authorities’s Eatwell information, we should keep in mind that, as with all meals, it is necessary to contemplate the general stability of the meals we eat.”
Tom Sanders, emeritus professor of vitamin and dietetics, at King’s Faculty London, stated: “I do not suppose this research ought to be used to discourage folks from consuming potatoes. Within the UK, potatoes are extra extensively consumed than within the USA and make an necessary contribution to the consumption of vitamin C and potassium. The vitamin C and potassium content material is greatest retained when the potatoes are baked or boiled with skins on.”
Dr Louis Levy, head of vitamin science at Public Well being England, stated: “The Eatwell Information reveals that we must always base our weight-reduction plan on starchy meals akin to potatoes, that are greatest eaten with the skins on to extend fibre consumption. The way you cook dinner and what you eat together with your potatoes can enhance the salt, fats and sugar in your weight-reduction plan. So maintaining a tally of these in addition to stopping smoking and being extra lively will assist scale back the danger of creating hypertension.”