Study under review: Effects of total fat intake on body fatness in adults
Obesity represents a worldwide public health issue and its prevalence continues to increase. This has led the World Health Organization (WHO) to indicate that any effect of total fat intake on bodyweight would be important in the development of global recommendations on total fat intake. As such, the WHO requested the WHO Nutrition Guidance Expert Advisory Group (NUGAG) to evaluate the relationship between total fat intake and bodyweight in order to update the relevant guidelines. To update the guidelines in an evidence-based way, a systematic review that included all available evidence of longer-term effects of fat intake on body fatness (excluding evidence associated with intention to lose weight) was required.
This led to the study under review, which assessed the relationship between total fat intake and indicators of body fatness, including bodyweight, waist circumference, body mass index (BMI), and percent body fat using all appropriate RCTs with a duration of at least six months.
Other Articles in Issue #71 (September 2020)
The key to berry low blood pressure
Berry supplementation drops blood pressure by a small but clinically significant degree, with cranberry, barberry, and cherry juices having a more clear impact than other fruits and forms. But some types and forms of fruit (especially whole fruits) weren't well-represented in this meta-analysis.
D-ribose for diminishing DOMS
D-ribose drops DOMS, but doesn't pack a punch performance-wise.
NERD Nulls: July-August 2020
A round-up of some recent nutrition and supplementation studies that didn't find any clear effect.
Supplementing saffron for rheumatoid arthritis relief
The first human trial examining saffron's effects on rheumatoid arthritis is promising on its face but has some study design issues that leave us concerned.
Deep Dive: Investigating the complicated relationship between potassium supplementation and blood pressure
Potassium supplementation can lower blood pressure in moderate doses, but this novel meta-analysis suggests that too much could have the opposite effect.
NERD Mini: Evidence-based recommendations for reducing Alzheimer’s disease risk
We boil down the main takeaways from a recent systematic review exploring what people can do to reduce the risk of developing Alzheimer's disease.
Deep Dive: Does calorie restriction reduce blood pressure?
Cutting calories lowers blood pressure in people with obesity, but the effect wanes with time.