Skip to main content
CSPI LogoCSPI Logo
  • Log In
  • Get email updates
  • Donate
    • One Time Gift
    • Give Monthly
    • More Ways to Give
  • Healthy Living
    • What to Eat
      • The Basics
      • Shop Smart
      • Restaurant Food
      • Recipes
    • Staying Healthy
      • Preventing Disease
      • Exercise
      • Fact vs. Fiction
      • The Planet & Your Health
      • Additives & Contaminants
      • Avoid Food Poisoning
      • Vitamins & Supplements
      • Weight & Health
    Featured
    • Our guide to food additive safety
    • Can home remedies ease cold symptoms?
    • How to pick your food packaging
    • The Healthy Cook's chickpea tagine
  • Advocacy
    • Campaigns
      • Pathogens and food safety: Farm to fork
      • New York nutrient warning labels
      • Predatory food marketing
      • Food chemical safety & transparency
      • Dietary Guidelines
      • Front-of-package nutrition labeling
      • Farm Bill
      • The Straight Shot: Federal vaccine updates
    • Our Approach
      • Advocacy resources
      • CSPI Action Fund
      • Grassroots activism
      • Litigation
    Latest News
    • Back to school: The easiest, healthiest packed lunches 
    • Centering equity in healthy food purchasing policies
    • Food safety tips for power outages and floods
    • All CSPI News articles
  • Our Issues
    • Nutrition
    • Food labeling
    • Healthy retail
    • Dietary Guidelines for Americans
    • Food service guidelines
    • School foods
    • Healthy SNAP
    • Food marketing to kids
    • Restaurant kids' meals
    • Food safety
    • Allergens
    • Foodborne illness
    • Healthy food banking
    • Food additives
    • Food dyes
    • Dietary supplements
    • New food technologies
    • Food and environment
  • Get Involved
    • Take Action
    • Donate Now
    • Resource Hub
    • More Ways to Give
    • Partner with Us
    • Subgrant Opportunities
  • About Us
    • Protecting Science
    • Our Victories
    • 2025-2030 Strategic Plan
    • People
    • Media Center
    • Careers
    • Intern Program
    • Diversity, Equity, and Inclusion
    • History
    • Accountability
    • Contact Us
    • Staff publications
  • Nutrition Action
    Current Issue
    Subscribe to NutritionAction
    • Current Issue
    • Archives
    • Search
    • My Account / Renew
    • Customer Service
    • Store
salad

Search

Topics
Subtopics
Date
Filtered By:
Viewing 10 Results
Your search did not return any results. Please try another search.
healthcare worker in blue scrubs giving a woman a vaccine shot in her upper arm in front of a bright window

How do we know vaccines are safe?

If you’re confused about whether vaccines are safe, you’re not alone. Are the ingredients safe? What are the long-term risks? Can kids’ immune systems handle so many? We’ve got your answers here.

Fact vs. FictionApril 14, 2025Caitlin Dow, PhD
woman with blanket around her shoulders blowing her nose

Can supplements ward off a cold, the flu, or Covid?

‘Immune boosting’ supplements are everywhere, but what does the evidence show about vitamins C and D, zinc, and elderberry for fighting colds, the flu, and Covid?

SupplementsFebruary 13, 2025Caitlin Dow, PhD
collage of the pointless products

A look at the evidence for collagen, CBD gumdrops, and 5 other pointless products

It never fails. You turn on the TV, start a new podcast, open a web browser, or walk through the supermarket, and you’re bombarded with ads pushing quick fixes to help keep you going in a demanding world: an immune boost here, a hangover cure there, a supplement for your hair or skin, or a little something to help you relax at night. What’s the evidence that these drink mixes, gummies, probiotics, and powders deliver on their promises? We took a look.

Fact vs. FictionJanuary 26, 2023Caitlin Dow, PhD
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
Gaia Herbs Quick Defense with Echinacea and Elderberry

What the best studies for echinacea and elderberry show

In the largest and best study on echinacea (co-authored by an employee of an echinacea maker), researchers randomly assigned 359 people to take echinacea or a placebo at the first sign of cold symptoms. The echinacea takers took 10,200 milligrams the first day and 5,100 mg a day for the next four days.

SupplementsMarch 26, 2021Caitlin Dow, PhD
hands applying sanitizer

Does hand sanitizer really kill all germs?

“Kills 99.99% of germs,” boasts the label of Germ-X hand sanitizer. But are most of those germs harmless? The FDA has asked companies for more evidence.

Food SafetyMarch 19, 2021Caitlin Dow, PhD

Can at-home remedies ease cold or flu symptoms?

Here’s what we know about three popular remedies: honey for coughs and chicken soup or neti pots for congestion.

SupplementsMarch 5, 2021Caitlin Dow, PhD
cold and flu supplements

Can supplements help prevent or fight off a cold or the flu?

There’s no shortage of supplements touting their “immune boosting” benefits. Here’s the evidence for colds and flu (not Covid-19) on some of the most popular.

SupplementsJanuary 30, 2021Caitlin Dow, PhD

Lifestyle changes may lower your risk of catching a cold or the flu

Washing your hands regularly and getting the flu shot every year can help guard against getting a cold or the flu. What else matters?

Preventing DiseaseJanuary 3, 2020Caitlin Dow, PhD
woman wiping nose with tissue

Colds & flu: What helps. What’s a waste of money.

There’s still no cure for the common cold or flu. Here’s what will—or won’t—curb your risk or your symptoms.

Preventing DiseaseNovember 23, 2019Caitlin Dow, PhD
Page 1Page 2Page 3...Page 1
Current Issue

Nutrition Action provides honest, unbiased, science-based advice on nutrition and health.

Read the Current Issue
subscribe
CSPI Logo
1250 I Street NW
Suite 500
Washington, DC 20005
1 (866) 293-CSPI (2774)
Contact
  • facebook
  • threads
  • instagram
  • youtube
  • tiktok
  • bluesky
  • About Us
  • Careers
  • Accountability
  • Nutrition Action Store

Hungry for change? It starts here.

donate now

© Copyright 2025, Center for Science in the Public Interest. All rights reserved.

  • Terms of Service
  • Privacy Policy
  • Reprint Requests
Get email updates
Donate
  • One Time Gift
  • Give Monthly
  • More Ways to Give
Log In
  • Healthy Living
    • What to Eat
      • The Basics
      • Shop Smart
      • Restaurant Food
      • Recipes
    • Staying Healthy
      • Preventing Disease
      • Exercise
      • Fact vs. Fiction
      • The Planet & Your Health
      • Additives & Contaminants
      • Avoid Food Poisoning
      • Vitamins & Supplements
      • Weight & Health
  • Advocacy
    • Campaigns
      • Pathogens and food safety: Farm to fork
      • New York nutrient warning labels
      • Predatory food marketing
      • Food chemical safety & transparency
      • Dietary Guidelines
      • Front-of-package nutrition labeling
      • Farm Bill
      • The Straight Shot: Federal vaccine updates
    • Our Approach
      • Advocacy resources
      • CSPI Action Fund
      • Grassroots activism
      • Litigation
  • Our Issues
    • Nutrition
    • Food labeling
    • Healthy retail
    • Dietary Guidelines for Americans
    • Food service guidelines
    • School foods
    • Healthy SNAP
    • Food marketing to kids
    • Restaurant kids' meals
    • Food safety
    • Allergens
    • Foodborne illness
    • Healthy food banking
    • Food additives
    • Food dyes
    • Dietary supplements
    • New food technologies
    • Food and environment
  • Get Involved
    • Take Action
    • Donate Now
    • Resource Hub
    • More Ways to Give
    • Partner with Us
    • Subgrant Opportunities
  • About Us
    • Protecting Science
    • Our Victories
    • 2025-2030 Strategic Plan
    • People
    • Media Center
    • Careers
    • Intern Program
    • Diversity, Equity, and Inclusion
    • History
    • Accountability
    • Contact Us
    • Staff publications
  • Nutrition Action
    • Current Issue
    • Archives
    • Search
    • My Account / Renew
    • Customer Service
    • Store
    • Subscribe