SAEDNEWS: Changes in the taste of breast milk can be caused by temporary factors such as diet, hormonal changes, or stress, and they usually return to normal with lifestyle adjustments.
According to SAEDNEWS, Breast milk is recognized as the most complete and ideal form of nutrition for infants. This valuable substance not only provides all the essential nutrients required for a child’s growth and development, but is also rich in antibodies and immune-protective factors that help safeguard the infant against many diseases. However, breastfeeding mothers may sometimes notice a change in the taste of their milk, which can raise concerns about whether it may affect their baby’s health or willingness to breastfeed. Alterations in breast milk taste can have multiple causes, ranging from simple and temporary factors to more complex medical conditions.
Hormonal changes and the menstrual cycle
One of the most common temporary reasons for changes in breast milk taste is hormonal fluctuations associated with the menstrual cycle. Many breastfeeding mothers report that their babies show less interest in feeding in the days leading up to or during menstruation. This occurs due to increased levels of estrogen and progesterone in the mother’s body, which can influence the composition and taste of breast milk. Fortunately, this change is temporary, and milk usually returns to its normal taste after the menstrual period ends.
Maternal diet
What a mother consumes directly affects the flavor of her breast milk. Certain foods can alter its taste:
Spicy and heavily seasoned foods: Garlic, onion, chili, curry, and other strong spices may give breast milk a sharp or intense flavor.
Cruciferous vegetables: Broccoli, cauliflower, cabbage, kale, and Brussels sprouts may make the milk taste bitter or strong.
Asparagus: This vegetable can impart a distinct taste and odor to breast milk.
Acidic foods: Citrus fruits, tomatoes, and vinegar-containing foods may give a sour taste.
Caffeinated beverages: Coffee, tea, and carbonated drinks may contribute a slightly bitter flavor.
Medications and supplements
Certain medications and dietary supplements can also affect the taste of breast milk:
Antibiotics: Some antibiotics, such as metronidazole and certain penicillins, may cause a metallic or bitter taste.
Iron supplements: Iron tablets can sometimes give breast milk a metallic flavor.
Antidepressants: Some of these medications may influence milk taste.
Herbal supplements: Certain herbal teas and supplements, such as mint, sage, and parsley, may alter the flavor of breast milk.

Infections and illnesses
Certain infections and medical conditions can alter the taste of breast milk:
Mastitis: This bacterial infection causes inflammation of breast tissue and may make breast milk taste salty or bitter.
Nipple fungal infection: Candida infection can change the taste of milk and may lead to infant feeding refusal.
Colds and influenza: Viral illnesses may affect breast milk flavor, although these changes are usually temporary.
Fever: An increase in body temperature can alter the composition of breast milk.
Subsequent pregnancy
If a mother becomes pregnant while breastfeeding, hormonal changes associated with pregnancy can significantly affect the taste of breast milk. The milk may become saltier or more bitter, and some infants may naturally refuse to breastfeed. This occurs due to increased levels of hCG as well as changes in estrogen and progesterone levels.
Storage and handling of expressed milk
The way expressed breast milk is stored can also influence its taste:
Fat oxidation: Exposure of milk to air or light can lead to oxidation of fats, resulting in a metallic or soapy taste.
Temperature fluctuations: Changes in refrigerator or freezer temperature can affect milk quality and flavor.
Storage containers: Improper plastic containers or poorly sealed glass containers may alter the taste of milk.
High lipase activity
Some mothers naturally have higher levels of the enzyme lipase in their breast milk. Lipase helps digest fats, but when expressed milk is stored in the refrigerator, this enzyme can break down milk fats and produce a soapy or metallic taste. Although this milk is not harmful to infants, some babies may refuse to drink it.
Strategies for Restoring the Natural Taste of Breast Milk
Dietary modification
Limit the intake of spicy and heavily seasoned foods.
Consume cruciferous vegetables in cooked form.
Reduce caffeine consumption.
Drink sufficient water (at least 8–10 glasses per day).
Stress management
Practice relaxation techniques such as meditation and deep breathing.
Ensure adequate sleep (at least 7–8 hours per night).
Seek support from a spouse and family to reduce daily stress.
Breast health care
Consult a physician if signs of infection appear (redness, swelling, pain).
Keep the nipples clean and dry.
Use appropriate creams in case of cracks or wounds.
Improving milk storage practices
Store expressed breast milk in glass containers or breast-milk–specific plastic containers.
Place milk at the back of the refrigerator to maintain a stable temperature.
Avoid exposure to direct light.
To reduce the effect of high lipase activity, briefly heat the milk in boiling water for about 30 seconds before freezing (scalding method).
Medical consultation
Consult a physician regarding any medications and their potential effects on breast milk.
Seek medical or lactation consultant advice if changes in milk taste persist.
Discuss breastfeeding continuation with a healthcare provider in case of a new pregnancy.