Is Cooked Ham Safe During Pregnancy? (Updated 2026 Guide)
Updated March 25, 2026
The Answer
Yes, cooked ham is generally safe during pregnancy when heated to steaming hot (165°F). The cooking process eliminates harmful bacteria, though most commercial cooked ham contains sodium nitrite which warrants moderation.
Cooked ham undergoes high temperature processing that kills harmful pathogens like Listeria and Toxoplasma, making it safer than raw or cured meats during pregnancy. However, most cooked ham products contain sodium nitrite, a preservative that may cause fetal hypoxia and has been associated with neural tube defects at high exposures. Enjoying cooked ham in moderation as part of a varied diet is considered acceptable by most health guidelines.
Pregnancy Safe is 100% independent and research driven. No companies pay to promote or sponsor products.
✓ What's Safe
- • Pre packaged cooked ham from reputable brands stored at proper refrigeration temperatures
- • Heat deli sliced cooked ham until steaming hot (165°F) before eating to eliminate any Listeria risk
- • Freshly opened packages consumed within 3-5 days of opening
- • Nitrate free or uncured options if you want to minimize preservative exposure
- • Limit to 2-3 servings per week to moderate sodium nitrite intake
✗ What to Avoid
- • Cold deli counter ham that hasn't been reheated - may harbor Listeria bacteria
- • Ham left at room temperature for more than 2 hours
- • Packages past their use by date or with broken seals
- • Excessive consumption due to sodium nitrite content in most products
Most Common Ingredients in Cooked Ham Products
We analyzed 195 cooked ham products. Here are the most common ingredients, ranked by how often they appear:
Ingredients to Watch Out For in Cooked Ham
These are the most common flagged ingredients across 195 cooked ham products we analyzed.
sodium nitrite
CAUTION
Sodium nitrite is a preservative used to cure meats. May cause fetal hypoxia and has been associated with neural tube defects at high exposures.
Found in 181 of 195 products (93%)
polysorbate 80
CAUTION
Polysorbate 80 is an emulsifier used in foods and medications. May alter offspring gut microbiota and immune function based on animal studies.
Found in 6 of 195 products (3%)
sodium nitrate
CAUTION
Sodium nitrate is compounds used as food preservatives and found in water. May impair fetal oxygen availability and are associated with preterm birth at high exposure levels.
Found in 6 of 195 products (3%)
potassium nitrate
CAUTION
Potassium nitrate is compounds used as food preservatives and found in water. May impair fetal oxygen availability and are associated with preterm birth at high exposure levels.
Found in 1 of 195 products (1%)
Cooked Ham Products We've Analyzed
We graded 195 cooked ham products for pregnancy safety.
Your Questions Answered
Can pregnant women eat cooked ham?
Yes, pregnant women can safely eat cooked ham when it's heated to steaming hot (165°F internal temperature). The high temperature cooking process used in commercial ham production kills harmful bacteria. However, if eating deli sliced cooked ham, always reheat it until steaming before consumption to eliminate any potential Listeria contamination that may occur after packaging.
What are the risks of cooked ham during pregnancy?
The primary risk with cooked ham is Listeria contamination, which can occur after the ham is sliced and packaged. Listeria can cause miscarriage, stillbirth, or serious illness in newborns. Additionally, most cooked ham contains sodium nitrite as a preservative, which at high exposures has been associated with fetal hypoxia and neural tube defects. Reheating ham and eating it in moderation addresses both concerns.
Can I eat a cooked ham when pregnant?
Yes, you can eat cooked ham during pregnancy. Thanks to the high temperature production process, cooked ham is considered safe for pregnant women. The key is ensuring any pre sliced or deli ham is reheated until steaming hot before eating. Whole cooked hams that you slice yourself at home carry less Listeria risk than pre sliced deli varieties.
How does ham affect my baby during pregnancy?
When properly heated, cooked ham poses minimal risk to your baby. The concern with undercooked or cold deli meats is Toxoplasmosis and Listeria, which can cross the placenta and potentially cause fever, hearing impairment, or more serious complications. Cooked ham also contains sodium nitrite, which in excessive amounts may affect fetal oxygen availability. Eating reheated cooked ham in moderation is considered safe.
Is deli ham safe during pregnancy if it's cooked?
Deli ham labeled as 'cooked' still needs to be reheated before eating during pregnancy. Even though it was cooked during processing, Listeria bacteria can contaminate the meat after slicing and packaging. Heat deli ham until it's steaming hot (165°F) in a pan, microwave, or oven before consuming. This extra step makes it safe for pregnant women to enjoy.
How Do We Score Products for Pregnancy Safety?
We analyze each product's ingredients and category to flag known risks and provide cautionary notices for general category safety concerns.
A - Safe
Excellent choice! All ingredients are considered safe during pregnancy.
What to do: Use with confidence.
B - Likely Safe
Pretty much safe with very minimal risk. Some ingredients may have limited pregnancy studies, but no significant safety concerns have been identified.
What to do: Use with confidence.
C - Limit
Contains ingredients with some pregnancy considerations. Research shows these ingredients may have limited safety data, potential for minor hormonal effects, or require caution based on animal studies.
What to do: Use sparingly and consider safer alternatives when available.
D - Caution
Similar to C grade but contains multiple cautionary ingredients. The combination increases overall concern.
What to do: Try to avoid if that makes you feel better. If you've already used it, no need to panic.
F - Avoid
Contains ingredients with established risks during pregnancy. Research shows these can cause birth defects, developmental harm, or serious maternal complications.
What to do: Do not use during pregnancy. If you've already used it, don't worry - contact your OBGYN if concerned.
References
- https://chemm.hhs.gov/countermeasure_sodium nitrite.htm
- https://www.liebertpub.com/doi/10.1089/zeb.2012.0746
- https://pmc.ncbi.nlm.nih.gov/articles/PMC1392223/
- https://oehha.ca.gov/sites/default/files/media/downloads/crnr/sodnithid.pdf
- https://pubmed.ncbi.nlm.nih.gov/2916857/
- https://www.nature.com/articles/s41598-022-27345-x
- https://www.americordblood.com/articles/nitrates and pregancy
- https://onlinelibrary.wiley.com/doi/abs/10.1002/tera.1420180311
- https://pubmed.ncbi.nlm.nih.gov/8824361/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3607976/
- https://www.fishersci.ca/shop/products/sodium nitrite-98-thermo scientific-1/p-7024287
- https://www.accessdata.fda.gov/drugsatfda_docs/label/2011/201444s000lbl.pdf
- https://pmc.ncbi.nlm.nih.gov/articles/PMC10305619/
- https://www.pharmacompass.com/chemistry chemical name/sodium nitrite
- https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/203923s001lbl.pdf
- https://go.drugbank.com/salts/DBSALT002657
- https://www.myactivehealth.com/hwcontent/content/multum/d07762a1.html
- https://www.buzzrx.com/blog/food and nitrates
- https://www.pharmaffiliates.com/en/7632-00-0-sodium nitrite pa2701381.html
- https://pubmed.ncbi.nlm.nih.gov/37979881/
