Please synthesize the following markdown texts into a single one that combines the information of all of them, while preserving the markdown format (bold words) found in the markdown texts. Make sure the summary includes all the bolded texts of the markdown texts. Make also sure that the summary doesn't have semantically similar sentences. Output the summary as code in markdown format (with two asterisks for bold words).

Text 1: Lemons are often promoted as a **weight loss food**, and there are a few theories as to why this is.
One common theory is that the soluble pectin fiber in them expands in your stomach, helping you feel full for longer.
That said, not many people eat lemons whole. And because lemon juice contains no pectin, lemon juice drinks will not promote fullness in the same way.
Another theory suggests that drinking hot water with lemon will help you **lose weight**.
However, drinking water is known to temporarily increase the number of calories you burn, so it may be the water itself that is helping with weight loss — not the lemon (10, 11).
Other theories suggest that the plant compounds in lemons may aid weight loss.
Research shows that plant compounds in lemon extracts may help prevent or reduce weight gain in a number of ways (12, 13).
In one study, mice on a fattening diet were given lemon polyphenols extracted from the peel. They gained less weight and body fat than other mice (14).
However, no studies confirm the weight loss effects of lemon compounds in humans.

Text 2: Drinking lemon wat