06 Apr 2020 --- There are few differences in outcomes of most diet regimes in terms of weight loss and improvements in cardiovascular risk factors over a period of six months. This is according to a study published in BMJ, which examined 121 randomized trials, involving a total of 21,942 overweight or obese patients who followed a popular named diet or an alternative control diet. The researchers highlight that people should choose a diet they prefer without being concerned about the size of benefits.