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by dahoramanodoceu
3249 days ago
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The more refined the source the faster it enters your bloodstream. That said, You should eat the fruit rather than consuming a juice. At any rate the glucose uptake is generally lower with fruits, even if juiced (but whole fruits with fiber still intact are best). The rate at which simple sugars enter the blood is considered one of the primary problems, as this leads to a number of metabolic problems and higher generalized oxidation of body tissue. Unlike added sugars fruits also have antioxidants and a number of other compounds and nutrients that do a swell job at negating these effects and even providing benefits (i suppose because a lot of fruit has surplus of Anti-Oxidant to Sugar Burn. |
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Fruit is typically a source of fructose, which uses a different metabolic pathway to glucose. Fructose is processed via the liver and converted into glycogen for energy storage.
That said, juice is definitely worse than whole fruit as you typically use several serves of fruit for a single serve of juice. Rarely would anyone eat 3-5 whole oranges in a single sitting. The sugars in a serve of fruit are also locked in a cellulose matrix (fibre) which limits the rate of release, whereas juice is effectively predigested food lacking the slow-release mechanism of the fibre. You're going to be loading your liver with an unnatural amount of sugar, not unlike pouring a jar of honey down your gullet.
It's a reason you should avoid mixing strong alcohol and juice or fructose-heavy soft drinks - you're hitting your liver with both barrels. Add paracetamol to the mix, which in even relatively low doses is toxic to the liver, to cure the morning headache and you're going to feel very unwell.