A common nutrition myth among the options you provided is:
• All snacking is bad for weight loss.
In reality, healthy snacking can be part of a balanced diet and might even help with weight management by preventing overeating during main meals. The other statements have some basis in fact, such as the first one emphasizing that no specific food can "burn fat" on its own, and the second one addressing that salt tablets are not recommended for cramping without professional advice. The last statement about drinking water can help with satiety, though it’s not a standalone solution for appetite control.