There's no question ...
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Boston Lettuce (one 163g serving) contains 3.5g of Carbohydrate and almost no fat.
Much of that carbohydrate (2g) is fiber which means that bostin lettuce has pretty much no fat and little to no carbs.
It has 2 grams of protein in a whole serving and tons of nutrients. If there was ever a food to lose weight with, it would be this one!
It's almost like eating nothing but fiber and water, both of which have no calories so it's a food that delivers pure nutrition with no effect on weight.
You would need to eat about 100 heads per day to maintain your body weight so technically I guess it's possible to gain weight with boston lettuce if you were to eat 150+ heads/day, everyday, but good luck with that feat.
Eat and be healthy.
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