Whether the amount of fat we eat affects our weight has been a hot topic of debate for years. Now, an analysis of the research finds that fat matters, and just switching higher-fat foods for their lower-fat counterparts – without any other dietary change – can help dieters lose a modest but significant amount of weight.
The study was published online in BMJ.
For the analysis, researchers looked at the 43 studies that compared a group of people who ate a low-fat diet to those eating the usual amount of fat. Thirty-three of those studies were randomized controlled trials (RCTs), lasting from six months over eight years and including almost 75,000 people.
RCTs are considered one of the strongest types of studies, randomly giving one group the dietary intervention and then tracking all involved. Continue reading