1. Milk
Nanavati says "lactose, the sugar naturally found in milk, requires the enzyme lactase for proper digestion. Lactose intolerance occurs when the body doesn't produce enough lactase, leading to bloating, gas, diarrhea, and stomach cramps after consuming milk."
She also adds that whole milk is high in fat, which can slow down digestion and lead to feelings of sluggishness or discomfort.
2. Cheese
Cheese is a beloved dairy product enjoyed in countless dishes worldwide, but it can also be a culprit behind digestive issues.
"Hard cheeses like cheddar or parmesan contain less lactose than milk, but some people with lactose intolerance may still experience issues. Aged cheeses can be high in tyramine, an amine that can trigger headaches and digestive discomfort in some individuals," she notes. "Full-fat cheeses are higher in fat, potentially causing digestive sluggishness."
3. Ice Cream
The high fat content in ice cream can slow digestion, causing feelings of fullness and bloating. Fatty foods take longer to digest, which can contribute to digestive slowness.
"Ice cream contains milk and cream, making it high in lactose and potentially problematic for those with lactose intolerance. Ice cream is often high in sugar and fat, contributing to bloating and sluggish digestion," says Nanavati.
4. Yogurt (with added sugars and fruits)
While probiotics in yogurt are generally beneficial, consuming too many, especially flavored ones, can sometimes lead to digestive discomfort, including gas and bloating, particularly in individuals who are not used to a high intake of probiotics.
"While yogurt contains live and active cultures that can aid digestion, some yogurts, mainly flavored varieties, are high in lactose. Added sugars in flavored yogurts can contribute to bloating and disrupt gut bacteria," says Nanavati.
5. Sour Cream
Sour cream is high in fat, which can slow down digestion. This can result in a feeling of fullness and discomfort, as well as bloating.
Nanavati reveals that "sour cream contains lactose, although fermentation may reduce it slightly. People with lactose intolerance may still experience digestive issues."
6. Butter
Consuming large amounts of butter can overwhelm the digestive system, especially when combined with other rich, high-fat foods. This can lead to indigestion and bloating.
"While not a significant source of lactose, butter is high in fat. Excessive fat intake can slow down digestion and lead to discomfort," she shares.