__Linnea__
2010-03-27, 23:04
Hej!
Jag har en fråga angående lösliga fibrer. Speciellt den sorten som kallas mucilage.
Om man läser nedanstående så står det i princip att läsa att om man kraftigt överdoserar så tappar man i vikt p.g.a. att lösliga fiber binder protein och fett och minskar kaloriupptaget (förutom det att de självklart binder mikronutrienter också, men det är inte det jag undrar över nu).
Kan det verkligen bli så illa? Jag trodde att fibrer som bantningsmedel användes eftersom de ökar mättnadskänslan. Men en kraftig överdosering, rent teoretiskt, skulle alltså kunna hindra upptaget av makronutrienter? Stämmer verkligen detta?
Tacksam för svar!
Linnea
http://www.spiritus-temporis.com/dietary-fiber/harmful-effects.html
Harmful effects
An overdose of soluble fiber can cause diarrhea and worsen irritable bowel syndrome. Negative effects of dietary fiber include a reduced absorption of vitamins, minerals, proteins, and calories from the gut. Some insoluble fibers can bind to certain minerals: calcium, magnesium, phosphorus, and iron. This is unlikely to be harmful in the average adult, but guidelines for the US have been established.
http://www.heractivelife.com/women/comment/can-you-od-on-fiber/
"-If you have a hard time keeping on the pounds, your fiber intake may be to blame. Many trying to lose weight will up their fiber intake, to increase satiety, and because fiber slightly reduces the amount of calories absorbed during digestion. But take it too far, for too long, and fiber can deprive you of too much energy - causing unwanted weight loss and a lack of those vital nutrients we mentioned earlier."
http://www.nlm.nih.gov/medlineplus/druginfo/natural/patient-flaxseed.html
Interactions with Drugs
Taking flaxseed ( not flaxseed oil) by mouth may reduce the absorption of other medications. Drugs used by mouth should be taken one hour before or two hours after flaxseed to prevent decreased absorption. People taking mood stabilizers such as lithium should use caution. Flaxseed contains alpha-linolenic acid, which may theoretically lower blood pressure. Individuals taking medications to lower blood pressure should use caution when taking flaxseed. Laxatives and stool softeners may increase or enhance the laxative effects of flaxseed. Flaxseed and flaxseed oil can lower cholesterol levels in animals, but studies in humans show mixed results. In theory, flaxseed may increase the effect of other medications that lower lipid (cholesterol and triglyceride) levels in the blood. Hormonal drugs may be affected. Dietary flaxseed may increase the effects of tamoxifen, a medication used to treat cancer. Consult a qualified oncologist and pharmacist before making decisions about treatment or health conditions.
Although studies report conflicting results, the omega-3 fatty acids in flaxseed and flaxseed oil may increase blood sugar, reducing the effects of diabetes treatments, including insulin and glucose-lowering medications taken by mouth. Flaxseed ( not flaxseed oil) is a rich source of plant lignans. Lignans are sometimes referred to as phytoestrogens and may possess estrogen-like properties. It is not known if flaxseed can alter the effects of birth control pills or hormone replacement therapies. Flaxseed and flaxseed oil theoretically may increase the risk of bleeding, and caution should be used when flaxseed products are taken with drugs that increase the risk of bleeding. Some examples include aspirin, anticoagulants ("blood thinners") such as warfarin (Coumadin ® ) or heparin, anti-platelet drugs such as clopidogrel (Plavix ® ), and non-steroidal anti-inflammatory drugs such as ibuprofen (Motrin ® , Advil ® ) or naproxen (Naprosyn ® , Aleve ®).
Jag har en fråga angående lösliga fibrer. Speciellt den sorten som kallas mucilage.
Om man läser nedanstående så står det i princip att läsa att om man kraftigt överdoserar så tappar man i vikt p.g.a. att lösliga fiber binder protein och fett och minskar kaloriupptaget (förutom det att de självklart binder mikronutrienter också, men det är inte det jag undrar över nu).
Kan det verkligen bli så illa? Jag trodde att fibrer som bantningsmedel användes eftersom de ökar mättnadskänslan. Men en kraftig överdosering, rent teoretiskt, skulle alltså kunna hindra upptaget av makronutrienter? Stämmer verkligen detta?
Tacksam för svar!
Linnea
http://www.spiritus-temporis.com/dietary-fiber/harmful-effects.html
Harmful effects
An overdose of soluble fiber can cause diarrhea and worsen irritable bowel syndrome. Negative effects of dietary fiber include a reduced absorption of vitamins, minerals, proteins, and calories from the gut. Some insoluble fibers can bind to certain minerals: calcium, magnesium, phosphorus, and iron. This is unlikely to be harmful in the average adult, but guidelines for the US have been established.
http://www.heractivelife.com/women/comment/can-you-od-on-fiber/
"-If you have a hard time keeping on the pounds, your fiber intake may be to blame. Many trying to lose weight will up their fiber intake, to increase satiety, and because fiber slightly reduces the amount of calories absorbed during digestion. But take it too far, for too long, and fiber can deprive you of too much energy - causing unwanted weight loss and a lack of those vital nutrients we mentioned earlier."
http://www.nlm.nih.gov/medlineplus/druginfo/natural/patient-flaxseed.html
Interactions with Drugs
Taking flaxseed ( not flaxseed oil) by mouth may reduce the absorption of other medications. Drugs used by mouth should be taken one hour before or two hours after flaxseed to prevent decreased absorption. People taking mood stabilizers such as lithium should use caution. Flaxseed contains alpha-linolenic acid, which may theoretically lower blood pressure. Individuals taking medications to lower blood pressure should use caution when taking flaxseed. Laxatives and stool softeners may increase or enhance the laxative effects of flaxseed. Flaxseed and flaxseed oil can lower cholesterol levels in animals, but studies in humans show mixed results. In theory, flaxseed may increase the effect of other medications that lower lipid (cholesterol and triglyceride) levels in the blood. Hormonal drugs may be affected. Dietary flaxseed may increase the effects of tamoxifen, a medication used to treat cancer. Consult a qualified oncologist and pharmacist before making decisions about treatment or health conditions.
Although studies report conflicting results, the omega-3 fatty acids in flaxseed and flaxseed oil may increase blood sugar, reducing the effects of diabetes treatments, including insulin and glucose-lowering medications taken by mouth. Flaxseed ( not flaxseed oil) is a rich source of plant lignans. Lignans are sometimes referred to as phytoestrogens and may possess estrogen-like properties. It is not known if flaxseed can alter the effects of birth control pills or hormone replacement therapies. Flaxseed and flaxseed oil theoretically may increase the risk of bleeding, and caution should be used when flaxseed products are taken with drugs that increase the risk of bleeding. Some examples include aspirin, anticoagulants ("blood thinners") such as warfarin (Coumadin ® ) or heparin, anti-platelet drugs such as clopidogrel (Plavix ® ), and non-steroidal anti-inflammatory drugs such as ibuprofen (Motrin ® , Advil ® ) or naproxen (Naprosyn ® , Aleve ®).