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We already know that lipids are a source of long term energy and carbohydrates are much faster energy releasing sources. So why do we need specific proteins within the body to store energy? Are proteins some sort of much quicker sources of energy? I really can't understand. Thanks for answering.

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  • $\begingroup$ Which protein energy-stores are you referring to? Could you add sources to your claim? $\endgroup$ – AliceD Aug 23 '16 at 18:26
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    $\begingroup$ Well I was referring to plant seeds and eggs which have proteins which act as energy sources. $\endgroup$ – HarshGuy Aug 24 '16 at 13:31
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    $\begingroup$ Proteins aren't used to store energy but to build structures. They can be burnt if needed though. $\endgroup$ – Mithoron Aug 24 '16 at 13:56
  • $\begingroup$ Any molecule (and atoms also), contains some-amount of energy (unstability, or ability to do some work), within its structure. $\endgroup$ – Always Confused Aug 28 '16 at 10:47
  • $\begingroup$ I think user @Mithoron should write their comment as an answer. $\endgroup$ – Always Confused Aug 28 '16 at 10:50

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