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IGF-1 or insulin-like growth factor-1 is a growth factor manufactured in the liver. IGF-1 production and secretions are triggered by growth hormone, which is manufactured and secreted by the pituitary gland. Growth hormone (GH) and IGF-1 trigger cellular growth.
That means growth of every cell in the body. IGF-1 is most commonly known for its ability to increase muscle mass. It’s a favorite among bodybuilders and athletes looking to increase muscle mass gains, physical endurance, stamina, and faster recovery after a workout.
What does the science have to say regarding IGF-1 for weight loss results? Studies on humans are limited. Some small studies have determined that treatment with IGF-1 can promote weight loss in small animals such as rats. It has also been tested on improving development of lean muscle mass in muscle-wasting conditions like AIDS and cancers.
While consumers may find a variety of websites promoting IGF-1 as an excellent supplement that can help with weight loss, it pays to be cautious. Claims extolling the benefits of IGF-1 for weight loss, and especially those encouraging its use and claiming that a person doesn’t have to diet or exercise to achieve such results, are false.
Of course, taking IGF-1 supplements while dieting and consuming a balanced and nutritious diet, increasing levels of exercise, and otherwise improving lifestyle habits, can promote some benefits. As mentioned, very little research has been conducted on the effect of an IGF-1 diet for weight loss on humans.
Others claim (mainly on bodybuilding websites) that IGF-1 does make it easier to lose fat and maintain a leaner body mass, of course combined with a long-term diet maintenance program and adequate levels of exercise.
Still, most of the users on such forum boards are also on specialized diets, exercise regularly, and get adequate amounts of sleep. Find out more here.
Any dietary supplement should be used with caution and according to the instructions provided on the label. Some people, looking for faster weight loss results not only drastically decrease their caloric intake, but also take a higher dosage than recommended on the supplement bottle. However, doing so can trigger a number of unexpected and unpleasant side effects.
IGF-1 is marketed to provide a number of benefits:
When taken according to instructions, IGF-1 for weight loss is relatively safe. Whether it’s effective is still under debate. For best results, combine use with the recommended calorie intake based on your age and height, increase activity, and talk to your doctor or a nutritionist about other ways that you can boost weight loss safely that ensures long-term success.
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