Sodium Restriction in Patients with Reduced GFR: Blood Pressure Benefits

By Martina McGrath, MD
October 18, 2017

The typical US diet is comprised of 3.4g of sodium per day on average, whereas current recommendations suggest that sodium intake should be limited to <2g/day for the general population1 and possibly lower for those with hypertension or cardiovascular disease.2 Continue reading “Sodium Restriction in Patients with Reduced GFR: Blood Pressure Benefits”

Vitamin D Supplementation and Reduced Risk of Upper Respiratory Tract Infections

By Martina M. McGrath, MD
August 30, 2017

As the cooler weather descends and the school year starts, we are again entering the season of viruses, colds, flu, and miscellaneous sniffles. Aside from vaccination and good hand hygiene, what else can we recommend to our patients to reduce their risk of upper respiratory tract infection?

A large meta-analysis of 25 randomized controlled trials of vitamin D supplementation and respiratory tract infections was published in the BMJ earlier this year.1 The researchers accessed patient-level data on 10,933 trial participants treated with supplemental vitamin D versus placebo. The trials included all age ranges, from birth to adults in their 70s , and had varied dosing regimens for vitamin D supplementation. Continue reading “Vitamin D Supplementation and Reduced Risk of Upper Respiratory Tract Infections”

Daily Calorie Restriction vs Alternate Day Fasting for Weight Loss

By Martina M. McGrath, MD
July 7, 2017

Alternate day fasting (ADF) is a popular weight loss method, promoted via weight loss books and media. In the most widely promoted form, participants are advised to eat ~25% of their daily caloric needs on fasting days, alternating with unrestricted intake on nonfasting days. It has been suggested that it produces more significant weight loss and greater compliance than standard caloric restriction, as daily compliance is not necessary. Continue reading “Daily Calorie Restriction vs Alternate Day Fasting for Weight Loss”