A lot of our customers ask us whether they’ll be able to “feel” their multivitamin working, and when. Truth be told, the answer is kind of complicated: Some people might notice a difference, while some people don’t notice anything at all. Because we’re all unique, there’s no universal way to predict how you you’ll feel—but that’s also why this isn’t really an accurate clue that your multivitamin is doing its job.

Instead, let’s take a closer look at what’s happening beneath the surface. After all, our multivitamins were formulated with nutrients to help support your body from the inside out, throughout lots of different phases of your life. And while you might not necessarily “feel” it all going down, you should feel good about the fact that your multivitamin is supporting your health and helping fill nutrient gaps in your diet.

If you think about it, it’s kind of like servicing a car: Even if there’s nothing wrong, you still get regular oil changes and brake checks to ensure that it’ll be running as smoothly as possible for years to come. In the same way, you might look at a quality multivitamin as an investment in your health. Nutrition is key to helping support your body during different life stages, from general adulthood to pregnancy to menopause and beyond. Everything from blood-building and antioxidant support to supporting the way your body functions on a daily basis can be impacted by the nutrients you’re consuming.

So while you may not “feel” all this support happening underneath the hood, the best way to know that your multivitamin is servicing your body as it should is to look for a few key things:

Nutrients In Bioavailable Forms

It makes sense that you want to aim for nutrients that your body can properly utilize, right? That’s called bioavailability—and it’s not necessarily a given when it comes to other multivitamins on the market. Take folic acid, for example: While this synthetic form of folate is highly stable (which is one reason why folic acid is used in a lot of supplements), it’s also not necessarily the ideal form for your body to use. In fact, up to 40% of women have a genetic variation that makes it more difficult to properly utilize folic acid, which is why we use a version of folate called 5-MTHF in our multivitamins: It’s been shown to be more bioavailable than folic acid, so that even those with that MTHFR genetic variation can support their folate needs. (This is especially important for pregnant women, since your folate needs increase when you're expecting.)

Another example is iron. Our multivitamins use an amino-acid chelate form of iron, which is the same form you’ll find in food: this form has been clinically studied and tends to be gentler on the stomach and efficient for your body to use.

We can't leave out B12. This B vitamin is incredibly essential: One of its jobs is helping with normal cell division (and since cells are the building blocks of, oh, everything, that’s a really big deal). But for vegans and vegetarians, getting enough Vitamin B12 can be tricky, since it’s primarily found in fish, meat, eggs, and milk. We use a vegan-friendly form of B12 called methylcobalamin, which is the same form found in our bodies.

Similarly, omega-3 fatty acids are traditionally not very vegan-friendly: A lot of supplements source their omegas from fish oil. But did you know that fish actually get their omega-3 content from the algae they eat? So we went straight to the source: Our vegan omega-3 DHA is harvested from fermented microalgae.

Essentials—Hold the Excess

Let’s talk about nutrient overflow, because it’s definitely a thing. While a more-is-more approach to your vitamins might sound great in theory, the way nutrients work in your body is kind of like a well-tuned orchestra—when there’s too much of one nutrient, it can offset the balance of another. We don’t include Vitamin C in our vitamins for this very reason: Most people get plenty of Vitamin C from their diets alone, and high doses of Vitamin C can mess with the way our bodies process other nutrients.

The same goes for calcium. Research tells us that a lot of adult women under 50 get plenty of calcium through diet alone, and there’s some debate in the scientific community that overdoing it could be potentially harmful. So rather than adding calcium to our multivitamins, we chose to focus more on calcium-helper nutrients like Vitamin K2, Vitamin D, magnesium, and boron, which all help support bone health.*

A Delayed-Release Capsule Design

When your capsule dissolves too early, it’s not ideal for a couple of reasons. When the contents of your daily multivitamin interacts with harsh stomach acid, it might lead to stomach irritation and gas. But it’s also not the best place for nutrient absorption, either. Our delayed-release capsule was created with all of this in mind, so that those nutrients can be shuttled to a more ideal spot in the gut and you’re less likely to deal with weird vitamin burps or upset stomach.

All in all, we get it: We live in an age of instant gratification. But while that's nice when it comes to food delivery and binge-watching your favorite reality TV show, it’s not an ingredient you should look for in your daily multivitamin. Instead, we recommend ticking off the boxes above so that whether you feel the magic happening or not, you can still feel confident that your multivitamin is working for you.