How much manganese do I need per day?

Adequate intake is commonly set at 2.3 mg per day for adult men and 1.8 mg per day for adult women. Needs vary by age and life stage.

What foods are highest in manganese?

Whole grains, nuts, legumes, and tea are common sources. Many plant foods contribute smaller amounts that add up across the day.

Do I need a manganese supplement?

Most people do not. Manganese is common in food, and supplements can be risky at higher doses.

Can you get too much manganese?

Yes. The tolerable upper intake level for adults is 11 mg per day. Excess risk is mainly from supplements, not food.

Does manganese support bone health?

Manganese is involved in enzymes related to bone formation. That does not mean more is better. A whole-food diet typically covers it.

How does manganese relate to iron?

Iron status can influence manganese absorption. If you have iron concerns, address iron with proper guidance instead of guessing with manganese supplements.

Is tea a meaningful source of manganese?

It can contribute, especially if you drink it daily. It is not a reason to force tea, but it can support intake naturally.

What is the easiest manganese strategy this week?

Add one repeatable plant staple daily, like oats, beans, or a small portion of nuts. Track for a week and manganese usually follows.

Manganese

Manganese is a trace mineral involved in enzyme function, antioxidant defense, and bone formation. Most people get enough from a mixed diet because manganese is common in whole grains, nuts, legumes, and many plant foods. The bigger risk is not deficiency, it is unnecessary supplementation. If you already eat a plant-forward diet, you are usually covered.

Supports enzymes involved in metabolism and tissue building
Plays a role in antioxidant defense systems
Supports bone formation and connective tissue processes
Often comes naturally with whole grains, nuts, and legumes
Excess risk is mainly from supplements, not food

Try BeyondCal for free

How BeyondCal helps you track manganese

Track manganese automatically from logged foods and meals
See your rolling average over time after you log food
See how far you are from your daily target
Find which meals contribute most to your intake

Exact values and your gap are shown in the app after you log food.

See this in the app

What this helps with

What supports healthy manganese intake

Fiber-rich diets tend to deliver manganese naturally because many whole plant foods contain it
Adequate protein and total calories support consistent micronutrient intake overall
Tracking manganese with other minerals can show whether your diet is whole-food heavy or processed-food heavy

Playbook

Raise it fast

If you want more manganese from food, do this

Use whole grains as a base sometimes, like oats, brown rice, or whole wheat
Add nuts and seeds as repeat toppings, like pecans, hazelnuts, pumpkin seeds, or sesame
Use beans and lentils several times per week
Drink tea if you already like it. Tea can contribute manganese naturally
If you eat very little plant food, add one plant staple daily instead of reaching for a supplement

Food swaps

Simple swaps that increase manganese and overall diet quality

Refined breakfast -> oats or a whole grain cereal
Crackers or chips -> a small portion of nuts
White rice -> brown rice or a grain mix sometimes
Low-fiber lunch -> add beans or lentils to the bowl
Sweet snack -> fruit plus nuts

Timing tips

Practical manganese rules

Most people do not need manganese supplements. Food usually covers it
If you take a multivitamin, check whether it already includes manganese before adding anything else
Focus on weekly pattern. Manganese usually rises automatically when fiber and whole foods rise
If you have liver disease, do not self-prescribe manganese supplements

Absorption blockers and interactions

What can block or reduce absorption

What can be problematic

High-dose manganese supplements can be risky, especially long term
Iron deficiency can increase manganese absorption, which is one reason to avoid high-dose manganese supplements
Certain medical conditions, including liver disease, can raise risk of manganese accumulation. Follow clinician guidance
Occupational exposure is a separate topic, but it is not solved with dietary supplements

If you eat like this, watch out

You should pay extra attention if

Your diet is very low in whole grains, nuts, legumes, and plant foods overall
You rely heavily on ultra-processed foods and refined grains
You take a multivitamin plus extra mineral supplements without a clear plan
You have liver disease or other conditions that affect mineral handling. In this case, avoid self-supplementing
You have iron concerns. Track iron too before trying to optimize manganese

Track together

Manganese usually travels with whole foods. Tracking it with fiber and carbohydrates shows whether your diet includes whole grains and legumes. Tracking it with iron is useful because iron status and manganese absorption can interact, especially when supplements enter the picture.

Related nutrients

FAQ

Sources

Disclaimer: Educational only, not medical advice. Talk to a qualified clinician for personal guidance.

Read full disclaimer

The information provided is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Individual nutrient needs vary by age, sex, health status, medications, and other factors. Manganese is a nutrient where excessive supplemental intake can be harmful, especially in certain medical conditions such as liver disease. If you take mineral supplements, have liver disease, have concerns about iron status, or are considering manganese supplements, consult a qualified healthcare provider. BeyondCal helps you track intake from food logs, but it does not replace professional medical advice.