You do not need to eat sugar to have glucose.  You do not need to eat carbs at all.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gluconeogenesis" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gluconeogenesis</a>