Given the embarrassing nature of the side-effects, the short term effectiveness of the approach, not to mention the cost, individuals should think carefully about using such products and should never substitute them for the most effective and preferred approach – regular exercise and a balanced diet.In addition once a person stops taking the medication in most cases the weight is regained.
Recently a number of over the counter anti-obesity drugs such as Alli have become available which can help dieters help lose upto 50 percent more weight, compared with diet and exercise alone. Orlistat (sold over the counter and without a prescription as Alli) is a lipase inhibitor. These medications work by preventing the enzyme (lipase) in the gut from breaking down dietary fats into smaller molecules that can be absorbed by the body.
As a result the fat absorbed from food decreases by about 30% and is instead expelled from the body through bowel movements. Because of the way Alli works people who use it are advised not to eat more than 15 grams of fat with each meal. Eating greater amounts of fat will cause unwanted effects such as urgent bowel movements, diarrhoea and gas with oily spots.
While there is evidence to demonstrate that products such as Alli can help lose weight, this is estimated to be around 3-5 pounds over the course of a year, compared to around 8 pounds you could be expected to lose from undertaking regular exercise and adopting a balanced diet.
In addition once a person stops taking the medication in most cases the weight is regained. Orlistat also decreases the absorption of certain fat-soluble vitamins, so it is advisable that you would also need to take a vitamin supplement to prevent possible nutrient deficiencies.
Given the embarrassing nature of the side-effects, the short term effectiveness of the approach, not to mention the cost, individuals should think carefully about using such products and should never substitute them for the most effective and preferred approach – regular exercise and a balanced diet.
Also known as anorectics are marketed as an effective aid to losing weight. They work by increasing chemicals in the brain that affect mood and appetite – serotonin and catecholamine, which in turn reduces hunger sensations.
Appetite suppressants are chemically similar to amphetamines, and like the drug they can cause unpleasant side-effects. The main side effects associated with their use include increased heart rate, increased blood pressure, constipation, sweating, insomnia, headache, anxiety and dry mouth. Many users also experience a racing heartbeat or cardiac complications. Indeed several appetite suppressants have been withdrawn from the market over recent years because of unacceptable risks associated with their use.
Most supplements available on the market are not safe to take, even though they claim to be effective in suppressing the appetite and contributing to weight loss.