For the study, the researchers investigated 2,441 men, aged between 42 and 60 years who were examined over a period of 22 years. Only proteins from fish and eggs were not associated with heart failure risk in this study, researchers said.
As popular and widespread as diets based on high-protein intake are nowadays, a new Finnish study says that diets like the Ketogenic and Atkins diets could potentially cause several heart-related issues in middle-aged men.
For total animal protein, the HR was 1.43 for the highest versus lowest quartile (95 percent CI, 1.00 to 2.03; P-trend = 0.07), and for total plant protein, it was 1.17 (95 percent CI, 0.72 to 1.91; P-trend = 0.35).
Scientists discovered that higher intake of protein from most dietary sources was associated with slightly higher risk. At the end of the survey, 334 heart failure cases were diagnosed. That's pretty hard to visualize, but protein should only really make up around 10 percent of your daily calorie intake. Consumption of animal protein was found to increase the risk consumption of animal protein by 43 per cent, while eating plant protein raised the risk by 17 per cent.
Speaking on Today Extra, Dr Brad McKay explained most people don't need to go on a high-protein diet because the amount you need each day is probably less than you think. "Long-term interventions comparing diets with differential protein compositions and emphasizing differential protein sources would be important to reveal possible effects of protein intake on risk factors of heart failure".
The study, which was published May 29 in the journal Circulation: Heart Failure, is one of the first to look at the link between high-protein diets and heart failure, a condition in which the heart muscle can't pump enough blood to meet the body's normal demands.
The participants were divided into groups based on the amount of protein they consumed daily, which was estimated from their urine.
Once the researchers had taken into account certain variables, such as age and renal function, the patients with the lowest protein intake had a 46% higher risk of death than those with the highest.