Mini-Fasting Guide
Current Post:

7 Powerful Immune Boosting Supplements

I don’t have time for a sick day—and neither do you! So today, I’m sharing my best immune boosting supplements for preventing illnesses or shaking them off quickly.

← Return to Wellness page Related Resources:


I know that being slim is at the top of your wish list, and it’s a big deal for me…

One of the first things I tell my patients is to eliminate dairy foods from their diets. And I won’t…

No doubt about it—summer can be cruel to your skin. You’re probably defending yourself already, with floppy hats and sunscreen.…

Is someone you love suffering from Alzheimer’s disease? If so, you know how devastating this tragic disease is—not only for…

Remember the last time you had hours to relax, read a novel, go for a swim, get your nails done,…

Every time I walk into a gym, I’m always shocked to see just how crowded the treadmills and ellipticals are.…

I’m all about being healthy, but hey… I also believe in living it up a little! So if you run…

When you stagger out of bed in the morning, does that first cup of coffee bring you back to life?…

When it comes to organs, your heart gets all the love. Heck, we even exchange heart-shaped cards on Valentine’s Day.…

7 Powerful Immune Boosting Supplements

Written by Dr. Kellyann Petrucci

One of the biggest “perks” of a healthy lifestyle is that you optimize your immune system. I spend half my life in airports (absolutely the worst place in the world to be if you want to avoid germs), and I can go for years without getting sick.

However, I also know that sometimes, a healthy diet and lifestyle aren’t quite enough to keep the bugs at bay—and that’s why I also keep seven powerful immune boosters on hand. These include three every-day supplements that help me stay healthy, three natural medicines I turn to when a bug does lay me low, and one food that can both prevent and heal illnesses. Here’s a look at all of them.

Vitamin D

If you can’t always get a daily dose of sunshine, a vitamin D supplement like my SLIM Sunshine can be a lifesaver. Research shows that vitamin D can cut your risk of getting a cold or the flu by about 10%, and up to 50% if you’re deficient when you start taking it.


I don’t want to brag… but just for a minute, I’m going to! I’m really proud of this SLIM Gut supplement because it helps you build a strong gut—and remember, 80% of your immune system is in your gut. SLIM Gut is a special blend of non-GMO ingredients and natural extracts that I’ve specially designed to heal your gut’s lining and make it rock-solid.

Bone Broth

You knew this would be on the list, right? It’s no secret that I’m a huge fan of bone broth, which is rich in gelatin that keeps your gut strong and healthy . Bone broth is also packed with glycine, which has bacteria-fighting powers. And if you do get sick, grandma is right: Drinking bone broth can help to clear up inflammation and get you back on your feet faster.


Your gut bugs play a big role in modulating your immune function—and the happier they are, the healthier you’ll be. That’s why I recommend keeping your gut’s ecosystem strong by taking a high-quality microbiome-supporting supplement like my SLIM Biotic every day and eating probiotic foods like kimchi, sauerkraut, and coconut kefir.

Congaplex (made by Standard Process)

As I said, I almost never get sick—but when I do, I immediately reach for this supplement. It’s a combination of vitamins, minerals, and plant and animal extracts designed to promote the health of the thymus gland, a key player in the immune system. The powerful antioxidants in Congaplex also help protect your cells from damage while they’re under attack from viruses or bacteria.

Oil of Oregano

This is another great go-to if you’re battling a bug. Oil of oregano has powerful antibacterial, antiviral, and antifungal properties and it can help you tackle all sorts of problems, including urinary tract infections, colds and flu, and even toenail fungus.

You can buy oil of oregano in capsule form or opt for drops. If you choose drops, put a little bit in a vaporizer or diffuser, or add a small amount to a glass of water or juice. You can also combine one part oregano oil with three parts coconut or olive oil to make a healing skin cream.

Oregano oil is very powerful, so never use it straight, either internally or on your skin. Also, do a “spot test” with a tiny amount to make sure you’re not allergic to it. One important caution: Do not use oregano oil either orally or topically if you are pregnant or nursing.


If you come down with a cold, a tiny dose of zinc may get you back on your feet faster. Zinc appears to work in two ways: by interfering with a cold virus’s ability to reproduce, and by blocking its ability to attach to cell membranes. Use zinc with caution, however, because it’s harmful in excess.

Add these seven immune boosters to your health regimen, and it’s a good bet you’ll have far fewer illnesses in the future. What’s more, if you do get sick, you’ll probably get well much faster. As a result, you can be fearless in that busy airport, crowded mall, or germy preschool. Salud!

Keep thinking Big and living BOLD!




Immune Boosting SLIM Supplements







Click here to subscribe