Xendurance Immune Boost Review

Who this multivitamin is for

Immune Boost is the multivitamin from Xendurance, and it's the one I've taken every day since 2017. I spent over ten years in the supplement industry as a salesman, I've seen a lot of multivitamins, and I've come to the conclusion that this is the best one out there.

It's for the guy who knows he should probably be taking a multi and has never found one worth taking. It's not just for men, either. It's for everybody.

If you want the cheapest multi on the shelf, or you want to feel something the day you start, this isn't it. I'll get to both of those.

Where it came from

You've probably never heard of it and probably never seen it. Xendurance was founded over 20 years ago to make supplements for elite level athletes, and Immune Boost has been around about that long. The formula has gone through different versions as new research has come out.

The founder actually made it for himself. He told me one time that he had a relative who lived to be 105, so his goal is to make it to 106. He's been taking it for over 20 years.

The doses are high enough to matter

This is the first thing that sets it apart for me. The ingredients come at research dosages.

Think of a protein powder. If it has two grams of protein in it, it's technically a protein powder. But most shakes have 20 to 30 grams a scoop, and that's the amount that actually does the job. Multivitamins work the same way. Vitamin C, vitamin K, whatever it is, the doses vary a great deal from one product to the next.

If you're buying a very cheap multivitamin, the ingredient is probably on the label, but it's probably not in there at a dose high enough to do much. I know it's a crazy idea to get actual benefit from the stuff you're spending money on.

The other half of that is bioavailability, which is just a fancy way of asking whether your body can actually absorb what you're swallowing. There are different qualities of the same ingredient, and the better ones absorb better.

A capsule, not a tablet

A lot of multivitamins come as a compressed tablet. You want absorption to start in your stomach, and a compressed tablet can start passing through before that happens. A lot of times you just end up passing it, and you never get the nutrients you paid for.

Immune Boost comes in a vegetarian capsule. Between that and the doses, those are the two things most multis on the market don't hit.

What's in it

I like to say it's a pharmacy in a bag. It's a wide spectrum of vitamins, minerals, antioxidants and phytonutrients in one formula, and it's Informed Sport certified.

It also has lutein and zeaxanthin, two carotenoids you don't find in every multi. That's a part of the formula I personally care about.

How I take it

Three capsules in the morning and three in the evening. Splitting it up that way keeps a steady flow of vitamins in your system all day.

It's part of my daily foundation of supplements. I pair it with a fish oil and vitamin D capsule and a magnesium based product, both from Xendurance. I've taken that every day since 2017.

The catch: you won't feel it

This is true of every multivitamin. It's not a pre-workout or a caffeine product where you notice it right away. It takes time to work in your system.

Think of it like an insurance policy. Nobody wants to pay for the insurance, but you're really grateful you have it when you need it.

The other catch is the pill count. Six capsules a day is a lot of pills, and if that's going to bug you, you should know it going in.

Do you even need a multivitamin?

I get this question all the time. Our food isn't as packed with nutrients as it used to be.

Even if you eat clean and eat a wide variety, I still think a multi is a good idea to fill in the gaps.

Would I buy it again?

I already do, and I have since 2017. I buy it myself.

If your current multi is a cheap compressed tablet, this is the one I'd switch to. Xendurance has a 60-day money back guarantee, so if you take it for two months and decide it's not for you, send it back.

If six capsules a day is too many, or you only care about spending as little as possible, skip it.