This is our selection of recently published studies and reviews in nutrition. Here are some of the most interesting findings this month:
- Sleeping poorly may increase your risk of weight gain or obesity.
- There is hardly any evidence that artificial sweeteners adversely affect blood sugar control or appetite.
- When pregnant women eat more protein (relative to carbs) their newborns tend to have less intra-abdominal fat.
- Supplementing with folate may improve risk factors for heart disease.
- Vitamin D deficiency is associated with erectile dysfunction.
As usual, we published two reviews this week: one on the association between poor sleep and weight gain and another on a systematic review of studies investigating the effects of non-nutritive sweeteners on blood sugar control and appetite.
Review: Does Poor Sleep Make You Fat?
Summary: This was a systematic review and meta-analysis of studies examining the association of sleep quality and overweight or obesity.
The analysis suggests that poor sleep quality, such as broken sleep or difficulties falling asleep, is linked with excessive fat mass. However, the direction of causality is still unclear.
Summary: This was a systematic review of studies examining the association of non-nutritive sweeteners (NNS), including artificial sweeteners, on blood sugar control and measures of appetite.
Most observational studies and randomized controlled trials suggest that NNS do not affect blood sugar control. However, they may improve blood sugar balance after a meal or drink when compared to sugar.
New Research From Around the World
Lots of new papers came to our attention this week. Here are summaries of the most interesting or relevant studies, categorized by subject.