Many people start their day with a glass of lemon water, hoping for a range of health benefits—from better skin to improved digestion. But what actually happens when you stick to this habit every day for a month? According to gastroenterologist Dr Saurabh Sethi, lemon water can offer some real advantages, as long as you are aware of a few important points.Lemons Pack a Big PunchLemons are packed with more than 30 beneficial plant compounds, says Dr Sethi. These include antioxidants and anti-inflammatory agents that support your body's daily housekeeping on a cellular level.But freshly squeezed is important. “Pasteurised lemon juice often loses a significant portion of its nutritional value,” Dr Sethi explains. Absorption Gets a BoostWhile you are sipping away, thinking you are just hydrating enough, something pretty important is happening in the background. The natural acidity of lemons can help your body absorb minerals more effectively, particularly iron, according to Dr Sethi. That means your morning lemon ritual might be giving your iron supplements or spinach salads a bit of extra firepower.And lemon water does not magically "alkalise" your body. But what it does do is help your digestive system set the stage for better nutrient uptake.Skin Goals and Collagen DreamsIf you are secretly hoping for that elusive “glow-up” by day 30, you might be in luck. Lemons are a great source of vitamin C, a key player in the production of collagen, the protein responsible for keeping your skin firm, your joints cushioned, and your connective tissues in top shape.Dr Sethi says that daily lemon water may support healthier skin from the inside out. Think of it as your internal skincare serum. The Bitter TruthAs Dr Sethi points out, lemon water might not be ideal for everyone, especially those with acid reflux or sensitive stomachs. The very same acidity that helps with mineral absorption can irritate the oesophagus lining or worsen heartburn in susceptible folks. If you have ever felt that familiar burn after a glass of lemony water, your body is throwing a sign.