Study under review: Effect of vitamin D supplementation on asthma control in patients with vitamin D deficiency: the ACVID randomised clinical trial
Is vitamin D supplementation beneficial for asthma control and severity in asthmatic adults with plasma 25-OH-D levels under 30 ng/mL (less than 75 nM)?
Other Articles in Issue #77 (March 2021)
Mini: Takeaways from the ISSN's position on caffeine and exercise performance
We break down some key takeaways from the International Society for Sports Nutrition's newly-updated position stance on caffeine's use in exercise performance.
Deep Dive: Micronutrients with micro-effects for preventing and treating acute respiratory infections
This meta-analysis found evidence that supplementing vitamins C and D may prevent the risk of acute respiratory infections, but only by a tiny amount. Zinc has a more sizable effect, but only once symptoms have set in.
The effects of full fasting vs. modified fasting on cognitive performance
How does full fasting impact mental functioning compared to very low-calorie intake over the course of a day? This study aimed to find out.
Nulls: November–December 2020
Highlights include omega-3's lack of impact on bipolar disorder, whether adding vitamin C to iron helps iron deficiency anemia outcomes, and more!
Battling exercise-induced muscle damage with omega-3s
This small study provides preliminary evidence that a high-dose mix of EPA and DHA may combat early post-exercise muscle soreness.
Deeper Dive: Shining a light on the effects of vitamin D on fall risk in older adults
This study suggests that higher vitamin D dosing doesn't prevent falls compared to lower dosing. Instead, it may cause more.
Deeper Dive: Do I have to choose between osteoporosis and heart disease?
A recent meta-analysis suggests that calcium supplementation leads to a small but significant increased risk of heart disease. In this review, we put this risk in context.