Romaine lettuce: How much is too much? Find out what the experts say, get serving sizes, and reasons to eat

Perspective from Iyanuoluwa Oyetunji

Master of Science in Medicine, specialization in Human Nutrition · 2 years of experience · South Africa


  • Romaine lettuce may help to maintain heart and cardiovascular health. The vegetable contains an adequate level of potassium, fiber, and folate which help to ensure this function.
  • Romaine lettuce contains vitamin A which is helps to maintain eye health.

Quantity Recommendation

  • A serving of romaine lettuce is one cup raw portion. About three to five servings of vegetables should be consumed in a day. Diet should be diversified by incorporating other vegetables into the diet.

Romaine lettuce: How much should you eat? Experts weigh in.

See side effects of Romaine lettuce from this expert

Perspective from Leticia Soares

Postgraduate Degree in Public and Family Health/Bachelor Degree in Nutrition and Dietetics · 5 years of experience · Brazil


  • Romaine lettuce manage glycemia. A recent study about the leafy green vegetable showed that adding romaine lettuce to a meal can lower postprandial blood glucose response, improving postprandial metabolism. That is an important vegetable property, since postprandial hyperglycemia is one of the earliest signs of problems with glycemic control associated with type 2 diabetes.

Quantity Recommendation

  • American Heart Association recommends eating 5 raw leafy vegetables servings per day. A serving of romaine lettuce is a cup, which contains approximately 50 grams of the vegetable. Long-term intake of leafy greens is certainly advisable. Before eating the vegetable is always important to rinse the leafy greens under running water and to rub the surface of the leaves using your hands.

Romaine lettuce: How much should you eat? Experts weigh in.

Love Romaine lettuce? Get nutritional facts, tips from health experts, and more

This is for information purpose only, and should not be considered as a substitute for medical expertise. These are opinions from an external panel of individual doctors, and not to be considered as opinion of Microsoft. Please seek professional help regarding any health conditions or concerns.

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