According to available information, wheat flour is considered to have a cooling effect on the body during summer and is beneficial for digestion. This is because wheat flour contains a higher amount of fiber, which helps in regulating body temperature and improving digestion. Additionally, roti made from gram flour is known to be rich in protein. This can also contribute to keeping the stomach cool in summer.
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It is important to note that the cooling effect of wheat flour and gram flour may vary from person to person, and it is always recommended to consult with a healthcare professional or nutritionist for personalized dietary advice.