How to Set Up Your Vitamin and Supplement Regimen: Recommendations for Every Age and Life Stage

Authored by La Jolla Vitality Co.

Walk into any pharmacy, health-food store, or online wellness marketplace and you can quickly become overwhelmed by the number of vitamins, minerals, herbs, powders, gummies, probiotics, and specialty supplements available.

But a healthy supplement regimen isn't about taking the most products possible.

The goal is to identify what you actually need, why you need it, and how to take it safely.

Nutritional needs change throughout life. Children, teenagers, adults, older adults, males, females, pregnant women, breastfeeding women, and people following vegetarian or vegan diets can have different nutritional considerations. The National Institutes of Health (NIH) specifically notes that multivitamin formulations often differ by age, sex, and life stage.

The following guide provides a practical framework for building a supplement routine while emphasizing an important principle: food should remain the foundation of good nutrition, and supplements should fill specific nutritional gaps rather than replace a healthy diet.

First: The Foundation Is the Same for Everyone

Before thinking about supplements, start with the basics.

Aim for a varied diet containing vegetables and fruits, whole grains, legumes, nuts and seeds, protein-rich foods, and healthy fats. Depending on your dietary pattern, fortified foods can also provide important nutrients.

Most people should obtain the majority of their vitamins and minerals from food. Supplements can be particularly useful when nutritional needs are difficult to meet through diet alone or when a healthcare professional identifies a deficiency or increased need.

Your supplement routine should therefore answer three questions:

What do I need?

Why do I need it?

How much do I actually need?

Supplements for Infants and Young Children

Children are not simply "small adults." Their nutritional requirements are different, and some supplements can be dangerous when taken in excessive amounts.

For healthy children who eat a varied diet, a broad collection of supplements is usually unnecessary.

Nutrients to Pay Particular Attention To

Depending on age and diet, important considerations can include:

• Vitamin D

• Iron

• Vitamin B12

• Calcium

• Iodine

• Folate

• Vitamin A

Vitamin D requirements during infancy and childhood are relatively low in absolute amounts, but adequate intake is important for bone health. Children with limited dietary variety, restricted diets, or certain medical conditions may need individualized supplementation.

Iron is particularly important during periods of rapid growth, but parents should not routinely give children iron supplements without discussing the need and dose with a pediatrician. Accidental iron overdose can be dangerous.

What About Children's Multivitamins?

A children's multivitamin may be reasonable for a child whose diet is limited or who has a nutritional gap, but it shouldn't be viewed as insurance against an unhealthy diet.

Choose a product specifically formulated for the child's age and follow the recommended dose. Keep all supplements locked away from children, since colorful gummies can look like candy.

Important: Never give a child an adult-dose supplement unless specifically instructed by a healthcare professional.

Supplements for Teenagers

Adolescence is another period of rapid growth, making adequate nutrition particularly important.

Teenagers may need particular attention to:

Iron

Iron needs increase during adolescence. Menstruating teenagers have especially important iron considerations because of menstrual blood loss.

However, iron supplementation should ideally be based on dietary assessment and, when appropriate, laboratory evaluation rather than taking high-dose iron automatically.

Calcium and Vitamin D

The teenage years are important for building bone mass. Adequate calcium and vitamin D, combined with weight-bearing physical activity, are important components of bone health.

Vitamin B12

Teenagers who follow vegetarian or vegan diets should pay particular attention to vitamin B12, particularly if they do not regularly consume fortified foods or supplements.

Overall Recommendation

For teenagers, focus first on adequate calories, protein, fruits and vegetables, whole grains, calcium-rich foods, and other nutrient-dense foods.

A multivitamin may be appropriate in selected circumstances, but a large supplement regimen is generally unnecessary without a specific indication.

Supplements for Adult Women

Adult women have nutritional considerations that can differ from those of men, particularly during the reproductive years, pregnancy, and menopause.

Iron

Premenopausal women may have higher iron requirements because of menstruation. However, iron isn't something every woman should automatically supplement.

If you experience fatigue or have risk factors for iron deficiency, discuss whether laboratory testing is appropriate before beginning high-dose iron.

Folate

Women who could become pregnant have an important reason to pay attention to folate.

Adequate folic acid before and during early pregnancy helps reduce the risk of neural tube defects.

Vitamin B12

Women following vegetarian or vegan diets may need supplemental vitamin B12 or reliable fortified-food sources because naturally occurring B12 is primarily found in animal-derived foods.

Older adults can also have difficulty absorbing naturally occurring B12 from food.

Calcium and Vitamin D

Bone health becomes increasingly important as women age, particularly around and after menopause.

Focus on obtaining adequate calcium through food and ensuring sufficient vitamin D.

Supplementation should be based on dietary intake and individual needs rather than automatically taking large doses.

Supplements for Adult Men

Men generally need fewer routine supplements than supplement marketing might suggest.

For healthy men eating a varied diet, there is usually no need for a large collection of vitamins and minerals.

Nutrients Worth Considering

Depending on diet and individual circumstances, attention may be appropriate for:

• Vitamin D

• Vitamin B12

• Magnesium

• Calcium

• Zinc

• Omega-3 fatty acids

But "considering" does not mean automatically supplementing.

For example, zinc is important for normal immune function and reproduction, but chronic high-dose zinc supplementation can cause problems, including copper deficiency.

What About a Men's Multivitamin?

If you choose a multivitamin, select one designed for adult men rather than assuming that a women's or high-dose formula is appropriate.

Men's multivitamins commonly contain less iron than women's formulas because adult men generally have lower iron requirements.

There is little reason to seek out "mega-dose" formulas.

Supplements During Pregnancy

Pregnancy is one of the clearest examples of a life stage in which supplementation can play an important role.

The NIH notes that nutritional requirements increase for several nutrients during pregnancy and that professional organizations generally recommend a prenatal supplement for pregnant women.

A prenatal vitamin typically provides nutrients such as:

• Folate/folic acid

• Iron

• Iodine

• Vitamin D

• Vitamin B12

• Zinc

• Other vitamins and minerals

Pregnancy is not the time to experiment with a large collection of herbal supplements or high-dose vitamins.

In particular, excessive intake of preformed vitamin A can be harmful during pregnancy.

Anyone who is pregnant, trying to conceive, or breastfeeding should discuss their supplement regimen with their obstetric or primary-care clinician.

Supplements for Breastfeeding Women

Breastfeeding increases the nutritional demands of some nutrients.

A prenatal or postnatal multivitamin may be appropriate depending on diet and individual needs.

Particular attention may be warranted for nutrients such as:

• Iodine

• Vitamin B12

• Vitamin D

• Choline

• Omega-3 fatty acids

• Calcium

Women following vegetarian or vegan diets should pay particular attention to vitamin B12 and other nutrients that can be difficult to obtain from plant foods.

The appropriate regimen depends on diet, whether breastfeeding is exclusive, and individual nutritional status.

Supplements for Adults Over 50

Nutritional considerations begin to change with age.

The NIH notes that adults over 50 may have increased difficulty obtaining certain nutrients, even though their overall calorie needs may decline. Vitamin B12 is an important example because some older adults have difficulty absorbing naturally occurring B12 from food.

Vitamin B12

Consider B12 from fortified foods or supplements when dietary intake or absorption is a concern.

Vitamin D

Vitamin D becomes increasingly important for bone health and muscle function. The recommended intake increases to 600 IU daily for adults ages 51–70 and 800 IU for adults over 70, although individual supplementation needs vary.

Calcium

Calcium requirements also change with age. Women over 50 generally require 1,200 mg of calcium per day, while men require 1,000 mg from ages 51–70 and 1,200 mg after age 70. Ideally, calcium should come primarily from food, with supplementation used when dietary intake falls short.

Vitamin B6

Older adults should also ensure adequate vitamin B6, but high-dose supplementation isn't necessarily beneficial and can cause harm.

Supplements for Adults Over 70

For adults over 70, the focus should increasingly shift toward maintaining bone health, muscle function, adequate nutrition, and preventing deficiencies.

Potential areas of attention include:

Vitamin D: Recommended intake is 800 IU daily for adults over 70.

Vitamin B12: Absorption can become more difficult with age, making fortified foods or supplements useful for some people.

Calcium: Adequate dietary calcium remains important for maintaining bone health.

Protein: While protein isn't a vitamin or supplement, adequate protein intake becomes increasingly important for preserving muscle mass and strength.

A "senior" multivitamin may be appropriate for some individuals, but it should not automatically be combined with multiple individual supplements.

What About Vegetarians and Vegans?

Dietary pattern is often just as important as age or sex when deciding what supplements may be appropriate.

People who eat vegetarian or vegan diets should pay particular attention to:

• Vitamin B12

• Iron

• Calcium

• Vitamin D

• Iodine

• Zinc

• Omega-3 fatty acids

Vitamin B12 deserves particular attention because naturally occurring B12 is found primarily in animal foods. The NIH notes that strict vegetarians and vegans are at increased risk of B12 deficiency.

Fortified foods can provide some nutrients, while supplements can fill remaining gaps.

A Practical Daily Supplement Framework

Rather than creating an enormous regimen, consider organizing your supplements into a few categories.

Foundation

Diet first: Build your nutritional foundation with whole and minimally processed foods.

Individual Needs

Correct deficiencies: Use laboratory testing or professional guidance when appropriate.

Life Stage

Adjust for life stage: Children, pregnancy, breastfeeding, menopause, and older age can change nutritional considerations.

Diet

Account for dietary restrictions: Vegetarian, vegan, dairy-free, and other diets can change which nutrients require attention.

Medications

Check interactions: Some supplements can interfere with medications or medical procedures. For example, vitamin K can interfere with warfarin, and some supplements may affect bleeding or anesthesia.

How to Build Your Own Supplement Schedule

Once you've determined what you actually need, make the routine easy to follow.

Morning

Take supplements that are recommended with breakfast or fit naturally into your morning routine.

Midday

Use lunchtime for supplements that need to be separated from medications or other supplements when specifically instructed.

Evening

Take products that are recommended with dinner or that fit best into your evening routine.

The exact timing depends on the individual supplement. Always follow the label and your healthcare professional's instructions.

A weekly pill organizer or medication-management app can also make routines easier to maintain.

Don't Double Up

One of the easiest ways to accidentally take too much of a nutrient is to combine multiple products.

For example, someone might take:

• A multivitamin

• A separate vitamin D supplement

• A calcium supplement containing vitamin D

• A "bone health" supplement containing vitamin D

• A fortified protein powder

The total amount can be substantially higher than expected.

Before adding anything new, look at all sources of the nutrient, including food, fortified beverages, medications, and other supplements.

Be Particularly Careful With "Mega-Dose" Supplements

More is not automatically better.

Some vitamins and minerals can cause adverse effects when consumed in excessive amounts. The

NIH recommends avoiding unnecessary megadoses and choosing supplements that provide nutrients in appropriate amounts.

Be particularly cautious with products marketed as:

• "Mega-dose"

• "Maximum strength"

• "Extreme potency"

• "Detox"

• "Hormone boosting"

• "Anti-aging"

• "Fat burning"

Marketing claims are not the same thing as evidence.

What About Supplements for Longevity?

The supplement industry frequently promotes products as "anti-aging" or longevity supplements.

Some individual compounds are being actively researched, but that doesn't mean they have been proven to extend human lifespan or prevent aging.

Rather than building your wellness strategy around a large collection of longevity supplements, prioritize the interventions with much stronger evidence:

• Don't smoke

• Exercise regularly

• Maintain cardiovascular fitness

• Strength train

• Eat a nutrient-dense diet

• Maintain a healthy weight

• Get adequate sleep

• Maintain meaningful relationships

• Manage chronic health conditions

• Keep up with preventive healthcare

Supplements can be considered an adjunct, not the foundation.

Create a Personal Supplement Audit

Once or twice a year, gather every supplement you take and review each one.

For each product, ask:

What is it?

Why am I taking it?

What dose am I taking?

Is there evidence supporting its intended use?

Do I still need it?

Does it overlap with another product?

Could it interact with a medication?

Does my current diet already provide enough?

If you can't answer these questions, it's time to discuss the product with a healthcare professional.

The Takeaway: Your Regimen Should Change With You

There is no single vitamin regimen that is right for everyone.

A healthy child needs a different approach from a healthy adult. A menstruating woman may have different nutritional considerations from a man. Pregnancy creates unique nutritional needs, while older adults may need to pay particular attention to vitamin B12, vitamin D, and calcium. Dietary patterns such as vegetarianism and veganism can also change which nutrients deserve special attention.

The goal isn't to take a pill for every possible health concern.

The goal is to identify genuine nutritional needs and address them safely and intentionally.

Start with food. Consider your age, sex, life stage, and dietary pattern. Review medications and laboratory results when appropriate. Choose quality products. Avoid megadoses and unnecessary duplication. Then periodically reassess your routine as your life and health change.

A smart supplement regimen should be personalized, purposeful, and simple enough to sustain.

Disclaimer: This article is intended for general educational and informational purposes only and is not a substitute for individualized medical advice, diagnosis, or treatment. Supplement needs vary substantially by age, sex, diet, medical history, medications, laboratory results, pregnancy status, and other factors. Children, pregnant or breastfeeding women, older adults, and people taking medications or managing medical conditions should discuss supplements with an appropriate healthcare professional before starting or changing a regimen. Never give children supplements intended for adults unless specifically directed by a pediatric healthcare professional.