Do You NEED a Multivitamin? 7 Signs to Look For

By Dr. Scott Olson, ND Posted February 20, 2025

Have you ever wondered if you really need that daily multivitamin? You’re not alone. Many people skip their vitamins, thinking a balanced diet provides everything they need.

While it’s true that whole foods should be your primary source of nutrients, even the most careful eaters sometimes fall short.

Think of a multivitamin as a nutritional safety net, catching occasional gaps in your diet before they become problems.

But how do you know if you’d benefit from a multivitamin? Your body has ways of sending signals when it needs additional nutritional support…
Here are seven key signs to watch for that could mean you need a multivitamin:

1. Persistent Fatigue

Do you find yourself dragging through the day, even after a full night’s sleep? While there are many potential causes of fatigue, nutritional deficiencies often play a role. Low iron levels can lead to anemia, while insufficient B-complex vitamins or vitamin D may sap your energy. A quality multivitamin can help maintain healthy levels of these essential nutrients.

2. Frequent Illness

If you’re catching every cold that comes around or notice that minor cuts take forever to heal, your immune system might need support. Key nutrients for immune function include:

• Vitamin C for producing protective white blood cells
• Vitamin D for regulating immune responses
• Zinc for supporting natural barrier defenses
• Selenium for fighting oxidative stress

3. Brittle Hair and Nails

If your hair becomes unusually brittle or your nails keep splitting and breaking, it could be more than just cosmetic damage. These issues often signal deficiencies in biotin, vitamins C and E, or minerals like zinc and iron. These nutrients are crucial for producing the proteins that keep your hair and nails strong and healthy.

4. Skin Concerns

Your skin is a window into your nutritional status. Dull complexion, unusual dryness, slow-healing wounds, or persistent acne might indicate you need more:

• Vitamin A for skin cell renewal
• Vitamin C for collagen production
• Vitamin E for skin barrier protection
• Essential fatty acids for maintaining skin moisture

5. Muscle Issues

Are you experiencing unexplained muscle cramps or weakness? Your body might be telling you it needs more:

• Magnesium for muscle function and recovery
• Potassium for proper muscle contractions
• B vitamins for energy metabolism
• Calcium for muscle strength

6. Mental Fog

Having trouble concentrating or experiencing memory lapses? While many factors affect cognitive function, proper nutrition plays a vital role. Research suggests that B vitamins, vitamin D, and antioxidants support brain health and mental clarity. Recent studies show that regular multivitamin use could help maintain cognitive function as we age.

7. Digestive Challenges

Digestive issues like bloating, irregular bowel movements, or nutrient absorption problems can create a vicious cycle—poor digestion leads to fewer nutrients absorbed, further affecting digestive health. While a multivitamin isn’t a cure-all for digestive problems, it can help ensure you’re getting essential nutrients even when your digestion isn’t optimal.

If you recognize any of these signs, don’t brush them off. While a multivitamin can help address nutritional gaps, it’s vital to:

• Pay attention to your body’s signals
• Discuss persistent symptoms with your healthcare provider
• Choose a high-quality multivitamin appropriate for your age and needs
• Remember that supplements complement but don’t replace a healthy diet

Think of a multivitamin as part of your daily wellness routine, like brushing your teeth or getting enough sleep. It’s a simple step that can profoundly affect how you feel and function each day.

P.S. Dangerous vitamin deficiency sends folks to an early GRAVE.

Written By Dr. Scott Olson, ND

Nearly 25 years ago, failed mainstream medical treatments left Dr. Olson in constant pain – and his health in ruins. And that’s when he did something REVOLUTIONARY. He began his career in medicine – and dedicated his life to uncovering the true, underlying causes of disease.
Through his innovative medical practices in Tennessee and Colorado, Dr. Olson has helped cure countless seniors from across America of arthritis… heart disease… diabetes… and even cancer. All without risky prescription drugs or painful surgeries.

View More By Dr. Scott Olson, ND