Is Your Multivitamin Working? 4 Signs It’s Not

Is Your Multivitamin Working? 4 Signs It’s Not

You take your multivitamin every morning, but are you actually absorbing what you need? Not all supplements are created equal—and if your body isn’t benefiting, you might just be creating expensive urine.

Here are four subtle but clear signs your multivitamin might not be doing its job.

1. You Still Feel Tired All the Time

One of the main reasons people reach for a multivitamin is to support energy. But if you're still dragging through the day, it might be due to poor bioavailability. Many cheap multis use synthetic forms of B12 (like cyanocobalamin) that your body can’t efficiently convert. Look for methylated or activated forms like methylcobalamin or folate (5-MTHF).

2. Your Hair, Skin, or Nails Haven’t Improved

Multivitamins often promise beauty benefits thanks to biotin, zinc, and antioxidants. But if you’re not seeing any improvement after 8–12 weeks, the dose or formulation might be off. Nutrients like zinc and selenium need to be balanced—not overdosed—to actually help.

3. You’re Having Digestive Issues After Taking It

A quality multivitamin shouldn’t leave you feeling nauseous or bloated. If yours causes stomach upset, it could be due to hard-to-digest fillers, iron overload, or tablet coatings. Switching to a capsule or powder format with fewer additives can make a huge difference.

4. Your Bloodwork Still Shows Deficiencies

This is the most concrete sign. If you’re consistently supplementing but blood tests still show low levels of key nutrients (like D3, B12, magnesium, or iron), it’s time to reassess. Your supplement may not be dosed effectively, or your body might need more bioavailable forms.


A good multivitamin should feel like a quiet boost—not a question mark. Greenlabco’s formulas are designed for maximum absorption, clean ingredients, and real results you can feel and measure.

Explore our bioavailable wellness lineup and upgrade your daily ritual today.

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