Is Primal Harvest Immune Defense Effective? A Dietitian Answers

Primal Harvest Immune Defense is a legit, doctor formulated immunity boosting supplement, containing probiotics, vitamins and zinc complex, which can help support a healthy immune system and general wellness.

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I’ve recently been looking for all kinds of ways to boost my immune system. Not only are we dealing with the typical cold and flu season, but we have COVID to worry about. I’m very dedicated to working with my clients in-person to provide them with the services that they need, but that means that I’m at a higher risk of contracting an illness. If I have to spend a number of days in bed not feeling well, that means that I can’t help people. I’ve tried the typical immune-boosting methods like supplemental vitamin C and vitamin D in addition to eating healthy and getting enough sleep. I didn’t find that was enough, so I began searching for another supplement to add to my repertoire. 

I came across information regarding Primal Harvest Immune Defense after hearing about some of their other products, like Primal Harvest Gut Restore, from a friend of mine. I was happy to hear that this product was formulated by a doctor. That gives me some peace of mind knowing that I’m taking something that’s backed by science and is made with safe ingredients. I ordered a bottle and started taking them shortly after they arrived.

I’ve had a positive experience with Primal Harvest Immune Defense. It’s hard to say for sure how many illnesses I’ve avoided after starting this product, but I did catch a couple of colds that really weren’t that bad. I was able to continue my use of the product, and I got over the colds faster than what I’m used to. I also deal with seasonal allergies in the spring. I look forward to seeing if this product will have any effect on the sneezing and itchy eyes that I experience for a few weeks each year.

I want to share some more information with you regarding Immune Defense. If you’re looking to boost your immune system so you stay healthier and feel your best, then this might be the product for you.

Quick Summary of Primal Harvest Immune Defense Review

Product:Immune Defense (Immunity boosting supplement)
Best For:Boost immunity to stay healthy
Brand:Primal Harvest
Company HQ:Farmingdale, NY
Made in USA:
Doctor Formulated:
90 Day Money-Back Guarantee:
Shipping Cost:Free for orders over $75
Avg. Rating:4.9/5 ⭐ (56 reviews)
GW Rating:4.7/5 ⭐
primal harvest immune defense quick summary

What Is Primal Harvest Immune Defense?

Primal Harvest Immune Defense is a doctor formulated immune boosting nutritional supplement that contains a number of ingredients geared towards ensuring your immune system is functioning as optimally as possible. You get everything that you need in one bottle, including high doses of vitamins C, B6 and D3, prebiotics, probiotics, adaptogens and zinc. It’s a simple supplement, without the use of all kinds of additional ingredients that require research in order to feel comfortable taking them.

what is it primal harvest immune defense


  • I noticed that I experienced better gastrointestinal health when taking Primal Harvest Immune Defense. I’m usually pretty regular, but I had less gas and bloating.
  • Doctor formulated so you can be sure that nothing was overlooked with the creation of this product.
  • Contains BioPerine black pepper extract to aid in the absorption and bioavailability of the product. 
  • Fills in the nutritional gaps that you may experience, which end up negatively affecting your immune system. 
  • The adaptogens reishi and organic lion’s mane are included in the product. They provide immune support, but they can also naturally increase your energy levels.


  • It may take a little bit of time before you see the full results of the product. You’re supposed to take it daily, rather than just popping one here and there if you feel like you need an immune boost. This might not be ideal for everyone.
  • You may need a little time to get used to the daily probiotic and prebiotic supplementation if you have a sensitive GI tract. 

Who is it for?

This product is ideal for anyone that is looking for a way to boost their immune system. In this day and age, many of us are interested in staying healthy and avoiding illness. While washing our hands, eating right and getting enough sleep can help, it’s important that you’re doing that little bit extra to prevent illness and keep your immune system fighting the good fight. 

who is it for primal harvest immune defense

Ingredients Analysis

ingredient analysis primal harvest immune defense

Pre- and Probiotics

There are 7 billion CFUs of L. acidophilus and Bb-06 probiotics in this product. These are two widely studied strains of probiotics that aid in an optimally functioning immune system. There are also GOS prebiotics included. 

Lactobacillus Acidophilus (LA-14)

Lactobacillus Acidophilus (LA-14) occurs naturally in the body. Its purpose is to break down sugars into lactic acid. It occurs naturally in fermented foods, and it’s added to various supplements and dairy products. Depending on your overall gastrointestinal health, there is the possibility that you may not have enough of this beneficial bacterium in your body. This can lead to decreased immune function. People don’t often realize that much of their immune system exists in their GI tract. The Lactobacillus Acidophilus (LA-14) creates a more acidic environment, which prevents germs from thriving. 

Bifidobacterium bifidum (Bb-06)

Bifidobacterium bifidum (Bb-06) is found naturally in the large intestines and the stomach. It aids in normal digestive functions while helping to fight off harmful bacteria. If you have any candida overgrowth in your body, this is the probiotic that you want to supplement with. If you have candida issues, this will throw your immune system off-balance to the point where it’s not fighting off illness properly. 

Vitamin and Mineral Blend (Doctor Formulated)

Vitamin D3 (25mcg)

Vitamin D3 has a number of functions in the body, but it has a direct result on our immune system functions. When you have adequate levels of Vitamin D3 in your body, it produces over 200 different antimicrobial peptides that the body will use to fight a variety of infections. We don’t always get enough Vitamin D3 in the colder weather months when illness is more prevalent, so it’s a good ingredient to have in the supplement that you’re taking. 

Vitamin C (500mg)

Vitamin C is an extremely essential nutrient that our bodies use for all kinds of functions. It forms collagen in the body, produces neurotransmitters and aids in various immune functions. It’s also a very potent antioxidant, which can help to protect our cells. We can’t synthesize Vitamin C in the body, so we have to supplement with it.

Vitamin K2 (200 mcg)

Vitamin K supplementation is something that a lot of people neglect. However, it’s incredibly important for functions relating to dental health, heart health, hormonal function, kidney function, bone health, brain health and immune health. A collection of different compounds, Vitamin K can naturally reduce inflammation in the body, which is incredibly important in regard to immune function.  

Vitamin B6 (30mg)

While all of the B Vitamins are good for you, B6 is known for helping your immune system function. When you don’t have enough Vitamin B6 in the body, you may experience more severe illnesses or an increase in allergies.

Zinc (20mg)

Zinc affects a number of different parts of the immune system. It’s been shown to reduce the severity of an illness when taken at the first onset of symptoms. You’ll find zinc in a lot of different immune boosting supplements and products.

Claimed Benefits

Helps Support a Healthy Immune System

All of the vitamins and ingredients in Primal Harvest Immune Defense are specifically picked to boost your immune system. Whether your body needs to increase the number of healthy bacteria in your GI tract to help fight infection or you need a boost of vitamins that you’re not getting from your normal diet, this is a great product to take daily so you feel your best. 

Fewer Digestive Concerns

Probiotics and prebiotics are great to supplement with in order to get your GI tract in top shape. As I mentioned before, your immune system largely exists within your gastrointestinal tract. You want to make sure that you have plenty of beneficial bacteria in there to fight off anything that comes its way. As an additional benefit, you may experience less digestive concerns like bloating, gas and upset stomach when taking Primal Harvest Immune Defense.

Fewer Symptoms of Seasonal Allergies

Seasonal allergies are the worst, but they’re caused by an immune response to certain pollen and allergens that are in the air that you’re breathing. If your immune system is functioning optimally, you can often decrease the amount of allergic symptoms that you experience during your worst times of the year. 

claimed benefits of primal harvest immune defense

How Much Does Primal Immune Defense Cost?

A single bottle of Primal Harvest Immune Defense costs $23.96. You can purchase them in various quantities with the price remaining the same.

There is a 90-day money back guarantee provided with the purchase of Primal Harvest Immune Defense

how much does it cost primal harvest immune defense

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Honest Customer Reviews and Average Rating

Primal Harvest Immune Defense currently has a rating of 4.9 stars out of 5 on the Primal Harvest Website with over 56 reviews. 

Customers are thrilled with the product. They found it easy to take, with beneficial immune-boosting side effects. A number of people were sick with an illness and were taking the product. They found that their symptoms subsided much more quickly than usual. 

customer reviews of primal harvest immune defense

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Alternatives Compared to Primal Harvest Immune Defense

If you don’t feel that Primal Harvest Immune Defense is the right product for you, there are still a number of different immune-boosting supplements that you may still want to consider.

Immuneti includes a lot of the same vitamins, but also incorporates Echinacea, garlic bulb and elderberry into its ingredient list. KaraMD Total Immunity is a cellular and respiratory support product that contains Vitamin C, lysine, elderberry and zinc.

If you’re looking to add some green powders into your smoothies or work into your diet each day, I recommend Athletic Greens or Opti-Greens 50. They both contain a whole host of necessary vitamins and minerals including Vitamins D, C, E, A and much more.

alternatives to primal harvest immune defense

Is It Effective For Supporting a Healthy Immune System? Final Verdict

After doing my research, I felt that trying Primal Harvest Immune Defense was a wise choice. I didn’t want to select anything that had a very extensive ingredient list. I really wanted to target the main immune-boosting ingredients that I thought would be most beneficial. I was happy to find that this product did seem to have an affect on my body and how well I can fight illness.

I’ve been taking it consistently for a number of weeks now, and I feel like that is an important part of the product usage. You really need to build up that healthy digestive tract while providing your body with the immune support vitamins that are included. 

I’ll continue to take Primal Harvest Immune Defense throughout the rest of the winter, and I’ll see what the results are for springtime allergies. I have high hopes that I’m going to experience less symptoms than I normally do based on how I’ve been feeling thus far.

is it effective primal harvest immune defense

Tips For Success From The RD

Supplements are a great way to fill in the gaps that you have in your diet, but it’s always a good idea to get as many of your nutrients from whole foods as you can. If you’re having difficulty working enough healthy foods into your diet, there are ways that you can improve this situation.

I like to recommend making a health smoothie to many of my clients. You can pack a single smoothie with tons of healthy fruits and veggies like apples, bananas, spinach, pears, carrot and much more. If you use a healthier milk option like enriched rice milk or almond milk, you’re getting some great immune-boosting ingredients. 

You should also try to eat a rainbow over the course of a day. I know that sounds silly, but it’s a method you can use for ensuring you’re getting as much nutrients as possible. The more colorful your food is, the more vitamins and minerals that are present. Do your best to get red from apples, purple from beets or purple carrots, leafy greens, yellow peppers and blueberries for plenty of Vitamins C, D and antioxidants. 

tips for success to primal harvest immune defense
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Courtney D'Angelo, MS, RD

Courtney D'Angelo, MS, RD, earned her masters degree in Nutrition and Foods from the University of Georgia. She's a Registered Dietitian at Morrison Healthcare and has a strong passion in helping people improve their wellness!

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