Enzyme activity
Zinc is required for the catalytic activity of many enzymes.
Zinc
MineralZinc helps with DNA and protein synthesis, normal immune function, growth, and wound healing.
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What it is
What Is Zinc?
Zinc helps with DNA and protein synthesis, normal immune function, growth, and wound healing.
You do not need to memorize a nutrient chart. The useful part is knowing where it shows up in food, roughly how much you need, and what that can look like on an actual plate.
What the body uses it for
What Zinc Actually Does
DNA and protein synthesis
It contributes to normal cellular growth and repair.
Immune function
Adequate zinc is required for normal immune-cell function.
Taste and smell
Zinc is involved in normal taste and smell.
How much you need
How Much Do You Need?
Recommended amounts depend on the nutrient, age, sex, and life stage. Some compounds do not have an established Dietary Reference Intake.
Use the authoritative source below for the current RDA, AI, upper limit, or other guidance that applies to Zinc.
See current intake guidance →Food sources
Where Zinc Shows Up in Food
You do not need to memorize this list. These are everyday examples of foods that can contribute Zinc. Amounts can change with serving size, variety, preparation, and fortification.
Oysters
Beef
Beans
Pumpkin seeds
Dairy foods
Food composition reference: USDA FoodData Central.
Make it useful
What Does That Look Like on a Plate?
Knowing what is in your food is useful. Knowing what to do with it is better. Pick a food. Find a recipe. See what you already have. Plan the meal. Buy what is missing. Then go eat food.
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A little context matters
When More Isn't Better
Long-term high-dose zinc supplements can interfere with copper absorption and cause other adverse effects.
Food and supplements are not the same thing. Supplements can deliver much larger doses. Medications, pregnancy, kidney or liver function, allergies, and other health circumstances can change what is appropriate.
Evidence & trusted sources
Where This Information Comes From
NIH Office of Dietary Supplements – ZincPrimary nutrient reference
USDA FoodData CentralFood composition and nutrient data
Evidence last reviewed: October 2026
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