Discover the Top 10 Foods High in Zinc for Better Immunity
Zinc is an essential mineral that plays important roles in immune health, growth, wound healing, DNA synthesis and more. Getting enough zinc in your diet provides a host of benefits, while deficiency can negatively impact many aspects of health.
The recommended daily intake for zinc is 8-11 mg per day for adults. While widespread zinc deficiency is rare, some groups including vegetarians, the elderly and those with digestive disorders may require more zinc-rich foods to meet their needs.
Read on to learn about the importance of zinc, zinc deficiency, and the very best food sources to add to your diet to get this immunity-supporting mineral.
The Health Benefits of Zinc
As an essential trace mineral, zinc is crucial for the proper functioning of numerous enzymatic reactions in the body. Here are some of the top benefits of getting enough zinc from your diet:
- Strengthens immune system and fights infections
- Supports wound healing
- Needed for growth and development
- Maintains taste and smell senses
- Plays a role in protein and DNA synthesis
- Supports normal fetal development
- May help treat diarrhea and pneumonia
- Regulates inflammation
Risk Factors for Zinc Deficiency
While mild zinc deficiency is common worldwide, certain groups have an increased risk of deficiency:
- Vegetarians and vegans
- Older adults
- Those with digestive disorders like Crohn's or Celiac disease
- Individuals with sickle cell anemia
- Pregnant and breastfeeding women
- Those with alcoholism
Symptoms of zinc deficiency include frequent colds and flu, diarrhea, loss of appetite, decreased immunity, hair loss, eye and skin sores.
Top 10 Foods Highest in Zinc
Eating a diet high in zinc-rich foods ensures your body gets enough of this essential mineral. Here are 10 of the very best dietary sources:
1. Oysters
Oysters top the list with more zinc per serving than any other food, providing 74 mg (over 6x your daily need) in just 6 medium oysters!
Oysters and other bivalve shellfish like clams, mussels and crabs are rich sources of zinc because they bioaccumulate zinc from the sea water as they filter feed.
2. Beef
Red meats like beef provide abundant zinc. A 3 ounce serving of beef chuck roast contains 7 mg, which fulfills over half your daily zinc needs.
Other beef cuts like ribeye, sirloin, ground beef and steak are also excellent sources, as is buffalo meat.
3. Lamb
Lamb delivers an impressive zinc payload. Just 100 grams of cooked lamb provides over 5 mg of zinc.
Chops, roast lamb and lamb loin provide your entire daily zinc requirements in a single 3-4 ounce serving.
4. Pumpkin seeds
Pumpkin seeds are one of the best plant-based zinc providers, offering 2.2 mg in just 1 ounce. Other seeds like squash, sesame and hemp seeds are also decent sources.
Add pumpkin seeds to salads, yogurt, oatmeal or blends into baked goods for an immunity boost.
5. Chickpeas
Chickpeas and other beans like lentils, kidney beans and baked beans can all provide significant amounts of zinc for vegetarians and vegans. One cup of cooked chickpeas has about 2.5 mg.
Enjoy beans in soups, stews, salads, dips like hummus or blended into veggie burgers and meatless meatballs.
6. Cashews
Nuts offer a tasty way to get more zinc. An ounce of dry roasted cashews contains 1.6 mg, almost 15% your daily needs.
Other nuts like almonds, pine nuts, pecans and walnuts also provide zinc.
7. Mushrooms
Certain mushrooms deliver a decent zinc dose, along with vitamin D which helps your body absorb zinc.
Just 1 cup of sliced crimini mushrooms has 1.4 mg. Shiitake and portabella mushrooms can provide even more.
8. Dark chocolate
Satisfy your sweet tooth while getting extra zinc by choosing dark chocolate. The cocoa in even small amounts of dark chocolate provides nearly 1 mg zinc per ounce.
Look for at least 70% cocoa and enjoy in moderation for heart and immune boosting benefits.
9. Spinach
Leafy greens like spinach are some of the best plant-based sources of dietary zinc thanks to their high bioavailability. One cup of cooked spinach boasts 1.5 mg zinc.
Other greens high in zinc include swiss chard, collard and turnip greens.
10. Garlic
Pungent garlic is also among the best zinc food sources, with impressive antibacterial and antiviral properties to boot. Just 10 grams or 2 large cloves provide over 1 mg zinc.
Maximize zinc absorption by letting chopped or crushed garlic sit 10 minutes before heating.
Other Zinc-Rich Foods
Here are more good dietary sources of zinc:
- Eggs
- Shrimp
- Yogurt
- Cheese
- Beans
- Chia seeds
- Quinoa
- Oatmeal
- Crab
- Lobster
Tips to Increase Your Zinc Intake
Make sure you get enough zinc daily by following these simple tips:
- Eat more zinc-rich plant foods like seeds, nuts, beans, oats, spinach
- Have seafood 1-2 times per week
- Choose red meats over chicken and fish
- Use chickpea flour and pumpkin seeds in place of white flour
- Add hemp seeds, cocoa or pumpkin seeds to your breakfast
- Snack on zinc-rich nuts like cashews or almonds
- Season foods with garlic
- Try a zinc supplement if deficient
Maximize Zinc Absorption
To get the most zinc from food, keep these tips in mind:
- Avoid overcooking high zinc foods
- Soak beans, grains and seeds before cooking
- Sprout nuts, seeds and legumes
- Culture dairy into yogurt or kefir
- Leaven bread with yeast for easier absorption
- Combat phytates by soaking beans and grains
Phytates found in plant foods like grains, legumes, nuts and seeds can inhibit zinc absorption. Preparation methods like soaking, sprouting and fermenting can reduce phytates and enhance zinc bioavailability in plant foods.
Supplementing with Zinc
Those at risk for zinc deficiency may benefit from supplementation, especially vegetarians and the elderly. When buying zinc supplements, opt for the amino acid chelates which are better absorbed.
The upper tolerable limit for zinc is 40 mg per day for adults. Exceeding this amount for long periods can negatively impact immune health.
To maintain optimal immune defenses, be sure to get enough zinc daily from food sources. Incorporating more zinc-rich foods provides better overall nutrition than supplements alone.
Focus on eating a balanced whole food diet with good sources of zinc for resilience against infection and optimized health all year long.
FAQs
What foods are high in zinc?
The top zinc food sources are oysters, red meat, poultry, beans, nuts, seeds, whole grains, dairy, and dark chocolate.
Which vegetables are high in zinc?
Good plant-based zinc sources include spinach, mushrooms, garlic, legumes, nuts, pumpkin seeds and cashews.
What causes zinc deficiency?
Risk factors for zinc deficiency include vegetarian/vegan diets, GI disorders, alcoholism, diabetes, and diets high in processed foods.
Can you get too much zinc?
Yes, the upper limit for zinc is 40 mg/day for adults. Too much can impair immune function and copper absorption.
Do zinc supplements boost immunity?
Zinc supplements may reduce cold duration and severity. But food sources are preferred for balanced nutrition.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.
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