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As we’ve learned, low blood sugar levels are best avoided for those of us seeking to optimize our energy, focus, sleep and eating habits. However, raised blood sugar can be a huge problem too. Spikes in blood sugar are known to provoke changes in the physiology and biochemistry of the body that predispose us to chronic (long-term) illness. Known effects include:

 Increased inflammation (a key underlying process in chronic disease including so-called ‘cardiovascular diseases’ such as heart disease and stroke)

 Increased oxidative stress (also known as ‘free radical damage’ – another potential driver of chronic health issues such as cardiovascular disease)

 Protein glycation (the binding of glucose to proteins in the body, thereby damaging them)

 Increased coagulation (essentially, making the blood ‘stickier’ – a risk factor for heart attacks and strokes)

 Raised levels of fats known as ‘triglycerides’ in the bloodstream (a recognized risk factor for cardiovascular disease)

There is compelling evidence that eating foods that are disruptive to blood sugar levels actually causes heart disease.1 One review found that such foodstuffs were associated with up to a doubling in risk.2

Another problem with elevated blood sugar levels relates to insulin: the higher blood sugar levels rise, the more insulin tends to be secreted. This poses others hazards for the body, particularly with regard to weight control.