Having Trouble Losing Weight? Avoid this!

I frequently hear from people who are having difficulty losing weight despite not over-eating. Many people seem to eat very little but still have difficulty losing weight. For some people, this may be related to the composition of their diet. Eating a large percentage of calories from simple carbs and processed foods leads to increased insulin levels. Increased insulin levels lead to weight gain and obesity. One type of sweetner is especially harmful – high fructose corn syrup (HFCS). It is found in a large number of  food products today as it is fairly cheap and quite sweet. A large concern about excess sugar in general, and specifically HFCS, is the impact on weight gain. Normally, our appetite is governed by a finely tuned hormonal system that drives us to eat just enough to meet our metabolic needs. Ghrelin is a hormone secreted by the stomach which tells us when we are hungry. Leptin is a hormone which signals our brain to tell us we are full. The problem is that when HFCS is consumed, it does not shut off ghrelin, so we continue to feel hungry.  In addition, the leptin signal is not triggered, so we don’t feel full. This drives overeating and contrhigh-fructose-corn-syrupibutes to obesity. The excessive consumption of HFCS may be a main contributor to the increasing incidence of diabetes.  HFCS leads to increased insulin levels and insulin resistance. HFCS, when consumed in excess, also increases the triglycerides in the bloodstream and increases the risk of heart disease. But what about naturally occurring fructose? Fructose occurs naturally in fruit. Isn’t fruit healthy? Absolutely!  The fiber present in fruit slows the absorption of fructose. This keeps insulin levels down. This is why it is better to eat an orange than to drink orange juice, which is concentrated sugar. Furthermore, fruit is loaded with phytonutrients to help prevent chronic disease and cancer.  If you are having trouble losing weight, start looking at labels. Avoid food products with added HFCS. You may find that your weight finally starts decreasing.

Author: drjeffgreenberg

Dr Greenberg is a clinical cardiologist who specializes in preventive cardiology, nutrition, exercise, and longevity. He favors using natural methods to improving one's health.

5 thoughts on “Having Trouble Losing Weight? Avoid this!”

  1. Dr Greenburg,

    Did you ever look at the Reliv website that we discussed during my appointment? Could you review both the Classic and the Cardiosentials and advise? Since my appt I have joined weight watchers and am hoping that you will see less of me on my next appointment😊!

    Maria Gomez

    Sent from my iPad

    1. I do not endorse any specific products. Most people do not need complicated supplements. A good multi-vitamin will usually do. It is better to get your nutrition from whole food. It is better to get your fiber from food versus a supplement. Save your money on the supplement and use it instead to buy more fresh fruits and vegetables!

  2. Hey Dr. Greenberg … I’ve been “juicing” for a while now … are you saying that making my own fresh fruit and vegetable juice isn’t necessarily a good thing?

    1. Jeff,
      It is healthier to eat the whole fruit versus juicing. Juicing concentrates the sugar and leaves behind the fiber. Taking in too much sugar can lead to elevated insulin levels and weight gain. Apple juice and orange juice are loaded with sugar. Next time eat the whole apple or orange instead. Furthermore, it will fill you up more by eating the whole fruit.

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