No matter if you are new to taking multivitamins or have been taking them since being given chalky chewable dinosaurs as a kid, it can be confusing as to their effectiveness. However, selecting a brand free from fillers and additives will increase their impact significantly.

Optimizing nutrition with healthy food sources and balanced eating plans is ideal, but taking a daily multivitamin may fill any nutritional gaps and provide added health protection at an economical cost.

Vitamin A

Vitamin A helps your immune system fight disease, while supporting healthy skin and eyesight. Without enough of this essential nutrient, individuals may be at greater risk for lung diseases like pneumonia.

Most health experts advise consuming a balanced diet to meet nutritional requirements, however multivitamins may fill any gaps due to limited food choices or health conditions that restrict absorption.

Women and older adults require an optimal combination of calcium, Vitamin D, magnesium, and phosphorus in their daily multivitamin supplements in order to build strong bones and prevent osteoporosis later. Take it with food for maximum absorption; high doses of retinol (listed on labels as either acetate or palmitate) could harm liver health; instead look for one with less than 1,000 IU preformed Vitamin A instead.

Vitamin C

Although most people can obtain enough vitamin C from eating foods like strawberries, oranges and dark leafy vegetables, certain groups might benefit from supplementing with multivitamins – specifically men and postmenopausal women who may receive insufficient amounts through daily intake that falls below the Recommended Dietary Allowance (RDA).

Multivitamins can also play an essential part in supporting pregnant and breastfeeding women’s diets. Their prenatal multivitamin should contain essential nutrients like folate for neural tube development, calcium for bone growth and iodine to prevent thyroid issues which all support fetal health and support fetal wellbeing.

Many of the same groups who need multivitamins to supplement their diets might also gain from taking separate vitamin C or B complex supplements; taking these may help improve cognitive function and promote overall mental wellbeing.

Vitamin D

Many Americans suffer from vitamin D deficiency due to declining sun production with age and due to few natural food sources containing it (some only providing 20% or so). Multivitamin supplements can be an effective solution in providing enough vitamin D.

Most health experts advise individuals to focus on eating healthily for optimal nutritional intake before turning to supplements; however, multivitamins may still prove helpful for some individuals such as older adults, those living with certain medical conditions that interfere with absorption, vegetarians and vegans.

Studies suggest that taking a daily multivitamin may lower the risk for macular degeneration, boost immunity and support bone health – but be sure to read labels thoroughly to make sure that they contain enough of what’s needed – the FDA requires labels to include percent daily values or recommended dietary allowances (RDA) of vitamins and minerals.

Vitamin E

Multivitamins provide essential vitamins and minerals, correct nutritional deficiencies, support healthy pregnancies, help ensure growth and development, improve brain, eye, heart and bone health as well as address any special dietary requirements or specific medical conditions. Different formulations exist to meet the nutrient needs of men, women, children and those with specific medical conditions or unique dietary restrictions.

Natural vitamin E (alpha, beta, gamma and delta-tocotrienols) can be found in plant-based oils, nuts, seeds and fruits, offering powerful antioxidant protection for cells against oxidative damage. While small observational studies and some clinical trials suggest vitamin E supplements could potentially prevent cardiovascular disease, another follow-up study by Heart Outcomes Prevention Evaluation-TOO study participants who took supplemented vitamin E did not experience reduced heart attacks, strokes or deaths when compared with those taking placebo.

Elderly adults may have difficulty digesting some nutrients, particularly B12. Multivitamins and fortified foods may provide assistance.

Vitamin K

Vitamin K is essential to bone health. You can find vitamin K in green leafy vegetables (the primary source of phylloquinone), plant-based foods and fermented products like kimchi and sauerkraut.

Vitamin K is produced by bacteria in the large intestine. Studies suggest that taking higher intakes of menaquinones like MK-4 may prevent arterial hardening and heart disease; however, more long-term studies must be completed first.

Multivitamins provide many additional nutrients not found in whole food sources, including folic acid, B12, potassium and magnesium. But multivitamins should not replace eating healthily – choose one without fillers and additives that fits well with your overall eating plan and includes pregnant women, older adults and people with specific nutrient needs as part of its benefits.

Calcium

Calcium is essential for bone and tooth strength. Additionally, calcium plays an essential role in blood clotting, muscle function, nerve transmission and hormone secretion. Calcium can be found naturally in some foods while supplements also offer this essential mineral.

Multivitamins can help ensure you receive all of the nutrients your body requires if you struggle with following a healthy diet. They may be especially helpful for individuals on restricted diets or with health conditions that interfere with nutrient absorption as well as pregnant and breastfeeding women.

Too much calcium from supplements and food sources can cause unpleasant side effects such as an urgent need to urinate, increased blood pressure and constipation. Furthermore, too much calcium increases your risk for heart disease and cancer – so try finding a multivitamin without calcium and take both supplements separately throughout the day to avoid an overload.

Magnesium

Magnesium is one of the most abundant intracellular cations, playing an essential role in more than 300 metabolic reactions and being involved in over 300 essential metabolic reactions. Magnesium also plays a vital role for heart health and several studies have linked higher dietary magnesium intake with lower risks of coronary heart disease (CHD) and cardiac arrhythmia in people who’ve had heart attacks; doctors may administer magnesium intravenously in these instances in order to reduce further arrhythmia episodes and other symptoms associated with congestive heart failure (CHF).

People suffering from Crohn’s disease or IBS may have difficulty absorbing magnesium. Aging also lowers intakes due to decreased absorption and increased excretion via urine. Large prospective cohort studies have discovered a potential association between higher dietary magnesium intakes and reduced blood pressure, but this finding could be confounded by factors like diet or obesity.

Zinc

Zinc is a mineral essential to cell health and function, including division and enzyme activity. Additionally, zinc contributes to protein synthesis and DNA replication. Zinc can be found in animal foods (such as meat), plant-based foods such as legumes and whole grains) as well as in dietary supplements.

Zinc deficiency can impede your body’s ability to fight infection (4), and studies indicate that taking zinc supplements may increase immunity and shorten colds (5).

Multiple clinical studies have demonstrated zinc’s effectiveness against cold symptoms by directly inhibiting rhinovirus binding to cells in the nasal mucosa and suppressing inflammation (6). Zinc supplements can also be taken as lozenges or syrups to help decrease severity. (7,8)

Iron

A multivitamin offers a general mix of vitamins and minerals designed to fill nutritional gaps or prevent micronutrient deficiencies. As research is limited on their effectiveness, it’s generally best to forgo claims made about these supplements with special claims like botanical herbs or food extracts added.

Vegan and vegetarian diets or those who follow particular health conditions that impact nutrient requirements could greatly benefit from taking a multivitamin, including those suffering from chronic gastrointestinal conditions and taking medications that limit absorption of vital vitamins.

Multivitamin users tend to eat healthfully and pursue other forms of healthy living; one exception are women trying to become pregnant who should take specially formulated prenatal multivitamins that contain 400 micrograms of folic acid each day in order to protect their unborn infant from neural-tube defects.

Vitamin B12

Vitamin B12 is an essential water-soluble vitamin your body requires for red blood cell formation and DNA synthesis, naturally found in animal products as well as added to fortified breakfast cereals, nutritional yeast supplements and plant milks. Furthermore, multivitamin/mineral combinations and standalone dietary supplements offer B12[22].

Many people can get enough vitamin B12 through eating healthfully and including foods from all food groups in their diet, but older adults may have trouble due to decreasing stomach acidity with age and taking medications such as proton pump inhibitors that decrease nutrient absorption.

Experts typically advise prioritizing healthy diet over multivitamin supplements as the way to meet nutritional needs, however some individuals may require multivitamin pills as part of a healthful lifestyle or to address specific health conditions that inhibit nutrient absorption.