Can not eating lower blood sugar?

Do you have a sweet tooth that just won’t quit? Do you find yourself indulging in sugary treats at every opportunity? Well, I hate to break it to you, but your love affair with sugar could be wreaking havoc on your blood sugar levels.

But what if I told you that not eating could potentially lower your blood sugar levels? Sounds counterintuitive, right? Let’s dive deeper into this phenomenon and see if there’s any truth behind the claim.

Understanding Blood Sugar

Before we get into the nitty-gritty of how not eating can affect our blood sugar levels, let’s first understand what exactly blood sugar is.

Blood sugar, also known as glucose, is a type of simple carbohydrate that our bodies use for energy. It comes from the food we eat and is carried through our bloodstream to our cells. Our bodies need a steady supply of glucose to function properly – too little and we may feel weak or dizzy; too much and we risk developing health problems such as diabetes.

The Role of Insulin

To keep our blood sugar levels in check, our bodies rely on insulin – a hormone produced by the pancreas. When we eat foods containing carbohydrates (such as bread or pasta), these are broken down into glucose which then enters our bloodstream. In response to this increase in glucose levels, insulin is released from the pancreas which helps transport glucose from the bloodstream into cells where it can be used for energy.

However, when someone has diabetes (either type 1 or type 2), their body either doesn’t produce enough insulin or can’t use it effectively – leading to high blood sugar levels which over time can cause damage to various organs in the body.

Fasting and Blood Sugar Levels

Ok, now onto the juicy bit – does not eating really lower blood sugar levels?

There have been several studies looking at how fasting affects blood sugar levels in people with diabetes. Generally, it has been found that fasting can lead to a decrease in blood sugar levels – as our bodies are not receiving any new sources of glucose during this time.

It’s important to note, however, that prolonged periods of fasting (such as for several days) can be dangerous and should only be attempted under close medical supervision. Additionally, for those taking certain medications (such as insulin), fasting could cause glucose levels to drop too low which could also result in serious health consequences.

Intermittent Fasting

So if prolonged fasting isn’t an option, what about intermittent fasting? This is where someone fasts for shorter periods of time (usually between 12-16 hours) followed by a window where they eat normally.

There have been some studies looking at how intermittent fasting can affect blood sugar levels over time. One study found that after eight weeks of intermittent fasting (with participants eating normally for five days followed by two consecutive “fasting” days), there was a modest decrease in HbA1c levels – a long-term measure of blood glucose control.

While these findings are promising, more research needs to be done before we start recommending intermittent fasting as a way to manage blood sugar levels long term.

Other Ways To Lower Blood Sugar Levels

For most people without diabetes who are looking to manage their blood sugar levels, the answer lies not in cutting out food altogether but rather making healthier dietary choices overall:

  • Avoid sugary drinks and foods filled with added sugars.
  • Eat plenty of high-fiber foods such as fruits and vegetables.
  • Opt for whole-grain carbohydrates instead of refined ones.
  • Choose lean protein sources such as chicken or fish.

In addition to these changes swap moderate exercise into your daily routine:

|Brisk walking|30 mins/day|
|Cycling|30 mins/day|
|Swimming|30-45 mins/day|

Physical activity can help improve insulin sensitivity and therefore make it easier for our cells to take up glucose from the bloodstream.


While there may be some truth to the claim that not eating could potentially lower blood sugar levels, this is only something that should be attempted under close medical supervision.

For most people without diabetes, a healthier way to manage blood sugar levels is through making dietary changes and introducing more physical activity into their daily routine. And let’s face it – life just isn’t as sweet without chocolate cake every now and then anyway!

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