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Peter's Memo: Cashing in on Covid

As the saying goes, “Another day, another dollar.” That’s how people shilling for shady Covid-19 cures must view the pandemic. One day it’s ivermectin, the next it’s hydroxychloroquine or colloidal silver.

COVID-19January 26, 2023Peter Lurie, MD, MPH
older man in scarf looking at thermometer

Can vitamin D prevent Covid or colds?

Does vitamin D “support immune health,” as some supplement labels claim?

COVID-19November 15, 2022
vitamin d

Vitamin D to fight COVID-19? Not so fast.

Remember hydroxychloroquine? Yes, there were anecdotes and observational studies, but, no, it flunked the gold standard for evidence, randomized controlled trials. Ditto with ivermectin. Now the man named “the most influential spreader of coronavirus misinformation online” is promoting another candidate for magic bullet: vitamin D.

COVID-19October 26, 2022Peter Lurie, MD, MPH, David Schardt
Woman pouring supplements into her hand from bottle

Does taking extra vitamin D prevent bone fractures?

Scientists randomly assigned 25,871 women aged 55 or older and men aged 50 or older to take a placebo or vitamin D (2,000 IU) every day.

Preventing DiseaseSeptember 22, 2022
woman reading news

Can you trust online health advice?

“10 ways to boost your metabolism.” “9 foods that lift your mood.” ”15 supplements to boost your immune system.” People love lists. So do websites eager to grab eyeballs. Only one problem: Much of the advice isn’t based on solid science. Here are some examples.

Fact vs. FictionMay 25, 2022Bonnie Liebman, MS
man exercising

Can omega-3s or vitamin D do much for knee pain?

An estimated one out of four older adults have chronic knee pain, usually because of osteoarthritis.

Preventing DiseaseMay 3, 2022Bonnie Liebman, MS
autoimmune diseases diagram

Does vitamin D or fish oil affect the risk of autoimmune diseases?

When you have an autoimmune disease, your immune system mistakenly attacks your own organs, tissues, and cells.

Preventing DiseaseMay 3, 2022Bonnie Liebman, MS
a woman walking her dog

How to keep your skeleton strong

Roughly 20 percent of women and 4 percent of men aged 50 or older have osteoporosis, or brittle bones. Another 50 percent of women and 30 percent of men 50 or older have osteopenia, or low bone mass. Here’s what you can do to protect your bones.

Preventing DiseaseOctober 21, 2021Bonnie Liebman, MS
vitamins

A round-up of recent findings on vitamin D and health

Getting enough vitamin D is essential for preventing osteoporosis (or brittle bones), but in recent years, scientists have tested whether it can prevent or treat other diseases. Here’s a roundup of some recent findings.

SupplementsJune 29, 2021Bonnie Liebman, MS
a bottle of vitamin d pills

More vitamin D isn't necessarily better

“Bone health,” says CVS brand vitamin D, which comes in five doses​—400 IU, 1,000 IU, 2,000 IU, 5,000 IU, and 10,000 IU. Whoa. The Recommended Dietary Allowance is only 600 IU a day up to age 70 and 800 IU over 70. Do your bones need doses in the thousands? The VITAL trial randomly assigned 25,871 people to take 2,000 IU of vitamin D or a placebo every day for five years. Roughly 770 of the participants had their bone mineral density tested when they entered the study and again after two years.

SupplementsJuly 27, 2020Bonnie Liebman, MS
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