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<blockquote data-quote="LittleGreyCat" data-source="post: 422231" data-attributes="member: 6467"><p>Just come late to this thread and I don't see any mention of the word 'ketosis' in the original question.</p><p></p><p>The question above is a bit imprecise.</p><p></p><p>If you are asking if you can have high sustained energy levels on a low carbohydrate diet where you get most of your energy from fats and oils then the answer is obviously "Yes" - regardless of whether you are going so low in the carbs that you are in ketosis or not.</p><p></p><p>The initial rush of energy in the 'fight or flight' response is due to the releasing of the body's stores of energy which have already been processed - you don't start getting your energy from your gut contents in that situation. In fact the flight response may also include dumping your gut contents (crapping yourself, sh*t scared etc.).</p><p></p><p>If you are asking if, after you have exhausted all your bodily energy reserves, eating fat will boost your energy reserves as fast as eating carbohydrates and sugars so that you can resume your fight/flight then the answer is probably not.</p><p></p><p>As far as I know diabetic endurance athletes will use carbs and sugars to keep their levels up during and post exercise because of the fast action.</p><p>This has to be balanced with slow release carbs, fats and protein to prevent the spikes and troughs you get if you rely wholly on sugars.</p><p></p><p>An interesting point - a T2 may start with higher blood glucose than a non-diabetic and so have more energy available in the blood stream. Slow ramping up of insulin production may also prevent the trough which you get when sugar hits the blood then insulin is released and clears too much out too quickly. However I haven't seen any study of this. Also, some diabetic problems relate to sugars passing through the cell boundaries so this might slow down the transfer of energy to the muscles.</p><p></p><p>Cheers</p><p></p><p>LGC</p></blockquote><p></p>
[QUOTE="LittleGreyCat, post: 422231, member: 6467"] Just come late to this thread and I don't see any mention of the word 'ketosis' in the original question. The question above is a bit imprecise. If you are asking if you can have high sustained energy levels on a low carbohydrate diet where you get most of your energy from fats and oils then the answer is obviously "Yes" - regardless of whether you are going so low in the carbs that you are in ketosis or not. The initial rush of energy in the 'fight or flight' response is due to the releasing of the body's stores of energy which have already been processed - you don't start getting your energy from your gut contents in that situation. In fact the flight response may also include dumping your gut contents (crapping yourself, sh*t scared etc.). If you are asking if, after you have exhausted all your bodily energy reserves, eating fat will boost your energy reserves as fast as eating carbohydrates and sugars so that you can resume your fight/flight then the answer is probably not. As far as I know diabetic endurance athletes will use carbs and sugars to keep their levels up during and post exercise because of the fast action. This has to be balanced with slow release carbs, fats and protein to prevent the spikes and troughs you get if you rely wholly on sugars. An interesting point - a T2 may start with higher blood glucose than a non-diabetic and so have more energy available in the blood stream. Slow ramping up of insulin production may also prevent the trough which you get when sugar hits the blood then insulin is released and clears too much out too quickly. However I haven't seen any study of this. Also, some diabetic problems relate to sugars passing through the cell boundaries so this might slow down the transfer of energy to the muscles. Cheers LGC [/QUOTE]
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