Liquid diets are typically used for quick and easy weight loss and to aid in detoxing the body. These diets may also be used to improve certain health conditions, including obesity, or during pre- and post-surgery when foods may not be tolerated. Although dieters will achieve weight loss success with these diets, it is usually water weight lost versus fat loss, and is not a permanent change. Furthermore, liquid diets may impose serious health risks due to low calorie and nutrient intakes. Always consult a physician prior to initiating a liquid diet for supervision and to avoid adverse effects.
Obesity
Liquid diets may help combat obesity and prevent associated diseases by assisting in weight loss. According to Vanderbilt University, dieting to lose weight can decrease the risk of serious conditions such as heart disease, high blood pressure, high cholesterol, stroke and respiratory problems. The risk of developing these conditions and diseases increases with excess weight and diets high in fats and sugars. Unhealthy fats increase the build-up of plaque in the arteries, which leads to atherosclerosis, or hardening of the arteries. Decreased blood flow may result in heart conditions, including heart attacks and blockages, as well as stroke.
Jump-Start Weight Loss
People looking to lose weight may use a liquid diet as a detox method. Detox diets are cleansing diets intended to rid the body of excess waste and toxins, which contribute to poor health and weight gain. By restricting food intake and relying on liquids for nutrition, the body has time to heal and repair after digesting heavy foods. Liquids are more quickly absorbed into the bloodstream for quick nutrient uptake and increased energy. Adding juices from fresh fruits and vegetables to a detox diet plan allows for nutrients from the produce but avoids over-taxing the digestive system from having to break down additional fiber and roughage. However, MayoClinic.com notes that detox diets lack scientific validity, and a healthy eating and exercise plan is more ideal for long-term success.
Improved Digestion
Liquid diets may be beneficial for individuals suffering from digestive upsets and disorders. Poor nutrition consisting of refined, processed foods that are high in sugar and fats take longer to digest and may sit in the stomach undigested, leading to fermentation. This leads to typical digestive complaints such as bloating, flatulence, constipation and cramping. Slowed digestion also contributes to lethargy, fatigue and increased weight gain. Engaging in a short-term liquid diet gives the organs and digestive system time to rest. Liquids with a high water content also aid in flushing out toxins and waste from the body as well as preventing dehydration.
Considerations
Embarking on a purely liquid diet is not safe for everyone and should only be conducted with medical supervision and consent. Fasting on liquids for an extended period of time may lead to vitamin and mineral deficiencies. This includes a deficiency in vitamin D, which is needed for good bone health; and iron, which is required for the transport of oxygen in the blood. Furthermore, consuming liquids that have no protein or fats in them increases the risk of poor nutrient intake, hormonal disruption and muscle weakness. Further negative symptoms of low calorie intake include dizziness, nausea, digestive upset, difficulty concentrating and fatigue.
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