Hidden Sources of Nickel You Probably Didn’t Know About

If you’ve been diagnosed with Systemic Nickel Allergy Syndrome (SNAS), you’ve probably already been told to avoid things like chocolate, whole grains, and canned foods. But what many people aren’t told right away is how many hidden sources of nickel could be sneaking into your daily routine – from cookware to water, and even your skincare products.

If you’re still reacting even after cleaning up your diet (which should be your number 1 priorty along with obvious contact sources), it might be time to dig deeper. Here are some surprising sources of nickel that could be flying under the radar, and how to avoid them if you’re at your wits end.

1. Tap Water

Yes, even the water you drink or cook with can contain trace amounts of nickel. This depends on your local water supply and plumbing system. Stainless steel pipes and fixtures may leach nickel into your water, especially if it’s acidic or soft.

What to do:

• Consider using a water filter that reduces heavy metals (look for NSF/ANSI 53 or 58 certified filters).
• Avoid boiling tap water in stainless steel pots – this can increase nickel leaching.

2. Stainless Steel Cookware & Appliances

Stainless steel contains nickel as a stabilizer, and it can leach into food – especially acidic or salty dishes like tomato sauce, lemon juice, and soups.

What to do:

• Switch to nickel-free ceramic, enamel, or glass cookware.
• Avoid long cooking times in stainless steel, especially with acidic ingredients.

3. Canned & Tinned

Even if the ingredients seem safe, metal cans often contain nickel, especially if the lining is damaged or the food is acidic (like canned tomatoes or beans).

What to do:

• Choose glass jarred foods or cook from scratch when possible.
• Watch out for “tetra packs” that might still have foil linings.

4. Makeup, Lotion, and Body Products

Nickel isn’t usually listed on ingredient labels, but many colorants, preservatives, or metallic packaging can contain trace nickel that causes skin flares.

What to do:

• Look for brands labeled “Nickel Tested,” “Hypoallergenic,” or made for sensitive skin.
• Avoid shimmery or metallic products unless you’ve patch-tested them.
  

5. Jewelry, Belts, Glasses and Clothing Hardware

Even if you don’t wear earrings, zippers, snaps, bras, belt buckles, and watchbands can cause local nickel reactions. If your skin is itching or breaking out in weird spots—this might be why.

What to do:

• Use a nickel spot test kit to check jewelry or clothing hardware.
• Apply a barrier coating (like clear nail polish or nickel-protective wipes), or swap for nickel-free options.
• Always ask if your glasses frames might contain nickel (many do!), and what allergy-sensitive options are available when you buy a new pair

6. Coins and Keys

Ever feel itchy fingers or irritated hands after running errands or handling change? It could be nickel again. Many coins and keys contain nickel alloys.

What to do:

• Use gloves when handling lots of coins or cleaning keys.
• Wash hands after prolonged contact—or keep a small barrier cream with you.

7. Supplements and Medications

Some iron supplements, multivitamins, and even coated pills can contain or be contaminated with nickel, especially if they include certain minerals or are produced on shared equipment.

What to do:

• Ask your pharmacist or doctor to check ingredients and manufacturers.
• Consider a compounding pharmacy for sensitive medications

8. Tea & Coffee

It’s not just food—black tea, green tea, and coffee can be quite high in nickel. Even decaf options may not be much better.

What to do:

• Switch to herbal teas like rooibos, peppermint, or chamomile.
• If you tolerate coffee, limit quantity and avoid brewing in metal machines.

9. Plant-Based Foods You Might Not Suspect

Even “healthy” foods like lentils, oatmeal, quinoa, soy, or seeds are naturally high in nickel. These often sneak into processed health foods, veggie burgers, granola bars, and smoothies.

What to do:

• Keep a symptom diary to track your reactions.

• Build meals around low-nickel staples like white rice, peeled potatoes, chicken, eggs, and certain fruits like apples or blueberries.
  

10. Mobile Phones

Your phone might be an unexpected source of nickel exposure—especially if it has a metal casing, buttons, or trim. Prolonged contact (like holding it to your ear or resting it on your skin while texting) can trigger localized reactions.

What to do:

• Use a full-coverage phone case (plastic, silicone, or leather-style) to reduce skin contact.
• Consider using headphones or speaker mode for calls.
• If you’re highly sensitive, look into “nickel-free” certified devices or test your phone with a nickel spot test.

11. Door knobs and Fittings Around The Home

Nickel is commonly used in hardware finishes – think doorknobs, handles, light switches, faucets, and cabinet pulls. Regular contact can lead to rashes or hand eczema in nickel-sensitive individuals, especially if you’re frequently touching these surfaces throughout the day.

What to do:

• For an easier fix, consider applying a clear protective coating (like nail polish or polyurethane sealant) to frequently touched surfaces.
• Opt for hardware labeled nickel-free, or choose materials like stainless steel (verify it’s low-nickel), plastic, wood, or brass with non-nickel finishes.
• Use barrier methods like gloves when cleaning or working around hardware.

Final Thoughts

If you’re dealing with SNAS and still reacting, these hidden sources might be sabotaging your efforts without you even realizing it. The good news? Once you identify and manage them, many people see a big improvement in their symptoms.

Remember – you’re not alone, and it does get easier with time.