Depending on who you ask, the multivitamin is either the greatest nutrition invention of all time or a complete waste of money. And there’s rarely a middle ground.

The debate became so intense that the National Institutes of Health felt obligated to make a statement, which only caused more confusion. Their official stance: “It is not possible to recommend for or against.” (using multivitamins).

If you're not sure whether you should take a multivitamin, we dug into the research to help you finally figure out what's best, whether you're just trying to be a little healthier or fuel a high-performance lifestyle. 

The Multivitamin Self-Assessment

If you really want to know how your body is functioning, just get a blood test. That will leave no questions of whether your body is lacking. But, if you don't want to head to the doctor, you can consider the following lifestyle assumptions and where you might need more help. Whether or not you need a multivitamin starts with a quick assessment of three factors: 

  • diet
  • sleep
  • exercise

This determines what type of nutrients your body needs most. For example, if you have trouble sleeping, it's possible you're deficient in vitamin B6, which is linked to the production of melatonin. 

Your body can produce most nutrients on its own or synthesize from your diet, but there are some vitamins and minerals that are more important than others and less common in your diet.

The Most Important Vitamins

In general, research suggests that almost everyone lacks magnesium, zinc, and –especially – vitamin D (all of which are available in Ladder Greens), so adjusting your diet to provide those nutrients (or taking nutrition supplements) is generally advisable.

Magnesium is a mineral that helps with hundreds of important processes in your body, including those that control how your muscles and nerves work. It also strengthens your bones, heart, and helps maintain normal blood sugar levels.

Zinc is important for immunity and nervous system development. And Vitamin D plays a vital role in absorbing and maintain proper blood levels of calcium (low calcium absorption is linked to many different health problems). More importantly, healthy levels of Vitamin D are linked to a healthy weight (obese people tend to have lower levels of Vitamin D), fighting against cardiovascular disease, preventing cognitive decline. 

Other essential vitamins include:

  • Vitamin B-6 helps your body produce melatonin and serotonin, hemoglobin and several neurotransmitters in the brain, promotes proper nerve function, breaks down proteins, and helps maintain blood glucose levels.
  • Vitamin B-12 aids in the formation of red blood cells helps maintain the nervous system, and aids metabolism.
  • Vitamin K is crucial for blood coagulation (clotting).
  • Biotin helps break down proteins and carbohydrates and is crucial for hormone and cholesterol production.
  • Folate (folic acid) aids the formation of red blood cells and is essential for DNA production.

If you're a woman, it's important to ensure you have enough iron in your diet, as you have a higher risk of iron deficiency, especially when pregnant.

Follow a plant-based diet? That's a healthy choice, but it also increases the likelihood of nutrient deficiencies. Research shows that vegans and vegetarians are more likely to be deficient in Vitamin B12. (You're also more likely to need higher amounts of protein and supplemental creatine for brain health).

For these reasons, most people are best served by a Greens powder, which has a few select nutrients you need in concentrated doses (are loaded with Vitamin D, zinc, magnesium, Vitamin B12, and several other vitamins and minerals, all derived from plant-based sources).

While multivitamins are fine, they frequently are loaded with so many vitamins and minerals that are either unnecessary or potentially too much for your system.

Mega-Dosing: Is It Risky?

The reason multivitamins have such mixed reviews is that there isn’t a standardized approach to their formulation. But, in general, the “more is better” approach is commonplace and a bit misleading.

You’ll find that multivitamins have antioxidants and vitamins that far surpass the Recommended Daily Allowance (RDA). While RDA’s are oftentimes a suggested threshold that is on the minimal side of dosing, you shouldn’t ignore the numbers either.

Do you really need 3000 percent of your RDA for Vitamins A and C?

Most research suggests that multivitamins will neither help or hurt your longevity. But, super high doses of vitamins might be bad for you.

According to Examine.com:

Some high-dose mixtures of antioxidants may increase the risk of death from all causes. Which combinations and doses are perilous isn’t entirely clear, but to play it safe, if you elect to supplement with antioxidants, don’t take amounts that far exceed your Recommended Dietary Allowances (RDAs).

High doses of B vitamins, too, might affect lifespan. One study reported that a high dose of nicotinamide (a form of vitamin B3 also known as niacinamide) could reduce the rate of new non-melanoma skin cancers, whereas a later study linked high doses of the vitamins B6 and B12 to an increased risk of lung cancer in male smokers (but not in non-smokers or in female smokers).

In essence, the RDA is an estimate of what you need to survive, not necessarily to thrive and live optimally. It’s tough to say whether your specific multivitamin contains the right doses to bring your levels to an optimal range, making it hard to argue for most common formulations.

It’s important to note that while nutrient deficiencies can hamper your immune function, the reverse is not true. Taking megadoses of vitamins does not improve your immunity.

What's more, even if its label says it hits all the RDAs, some multivitamins aren’t as beneficial as advertised because they use less-than-optimal ingredients.

A common example of this would be vitamin D2, which is less biologically active in the body than vitamin D3, and therefore less effective at boosting vitamin D levels. Similarly, studies show that magnesium citrate has superior bioavailability when compared with other forms of magnesium, but those other forms often end up in daily multivitamins.

Which leaves you with a simple question: if your goal is longevity and you’re not sure if your mega-dose of multivitamins packs too much of a punch, is it really worth the risk?

Safety Considerations

You can’t take the claims on a multivitamin label at face value because the labels are not verified for accuracy by the FDA.

If you want to ensure that you're getting what you paid for, NSF “Certified for Sport” label ensures that every batch of the product you're buying has been tested and reviewed to ensure that label claims are accurate and that there are no dangerous levels of toxins or metals or any banned substances.

Are Multivitamins For You?

We recommend two safer approaches to fill the gaps in your diet and covering your basic health needs.

1) Eat high-quality foods like leafy greens, fruits, and green tea, exercise appropriately, and manage your sleep and stress. These are the low-hanging fruit when it comes to disease prevention and living a vibrant, healthy life.

2) Rely on natural supplementation such as Ladder Greens, which is packed with the vitamins and minerals you need, but all from natural plant sources — like broccoli, spinach, matcha, barley, and beets — to supply healthy doses of nutrients your body needs, without the concern of mega-dosing and creating a potential risk.

For any multivitamin you consider, do your homework and be sure to look for the NSF Certified for Sport label to ensure safety and purity.