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LCHF - Low Carb High Fat: en experimentell studie av 3 veckors LCHF-kost på hälsomarkörer hos normalviktiga kvinnor
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences.
2011 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
LCHF - Low Carb High Fat : an experimental study of 3 weeks of LCHF diet on health markers in normal weight women (English)
Abstract [sv]

Sammanfattning

Syfte och frågeställningar

Syftet med denna uppsats var att undersöka hurvida en LCHF (Low Carb High Fat) kost skulle kunna vara en hälsosam livsstil utifrån hur den påverkar olika hälsomarkörer hos normalviktiga personer där en viktminskning ej har eftersträvats. Frågeställningen var följande: Hur påverkar en LCHF-kost med maximalt 30 gram kolhydrater per dag under 3 veckor normalviktiga kvinnors BMR (Basal Metabolic Rate), blodlipider, blodglukos, blodtryck, kroppssammansättning, midje- och höftmått samt deras kroppsvikt?

Metod

En experimentell studie har genomförts på 8 normalviktiga kvinnor mellan 20 och 35 år. Samtliga försökspersoners BMR, blodlipider, blodglukos, blodtryck, kroppssammansättning, midje- och höftmått samt kroppsvikt mättes vid normala levnadsförhållanden innan studiens start samt efter 3 veckor av en strikt LCHF-kost med endast 30 gram kolhydrater per dag.

Resultat

BMR sänktes i genomsnitt med 4,4% vilket var signifikant (P<0,05). HDL (High-density lipoproteins), LDL (Low-density lipoproteins) samt totalkolesterol höjdes signifikant (P<0,01) med 21%, 25% respektive 22%. Ingen signifikant skillnad i LDL/HDL-kvot, triglycerider eller blodtryck erhölls. Blodglukos sänktes med 12%, skillnaden var dock ej signifikant. Andel kroppsfett sänktes signifikant med 8,7% (P<0,01) och fettmassan med 11% (P<0,01). Den fettfria massan visade ingen signifikant skillnad. Midjemåttet minskade signifikant med 2,3% (P<0,05) och kroppsvikten i genomsnittt med 1,24 kg (P<0,05). Höftmåttet visade ingen signifikant skillnad mellan mätningen före och efter 3 veckors LCHF-kost.

Slutsats

Studiens resultat tyder på övervägande negativa effekter av 3 veckors LCHF-kost på olika hälsomarkörer, vilket skulle kunna få allvarliga följder så som kardiovaskulära sjukdomar och depression förutsatt att verkan successivt ökar.

Abstract [en]

Abstract

Aim

The aim of this study is to examine if LCHF (Low Carb High Fat) could be a healthy lifestyle based on how it affects various health markers in normal weight people where weight loss has not been pursued. Specific question: How does intake of a LCHF diet with a maximum of 30 grams of carbohydrates per day during 3 weeks affect normal-weight women´s BMR, blood lipids, blood glucose, blood pressure, body composition, waist and hip dimensions and body weight?

Method

An experimental study was performed on 8 normal-weight women aged 20 to 35 years old. All subject´s BMR, blood lipids, blood glucose, blood pressure, body composition, waist and hip dimensions and body weight were measured at normal living conditions before the study began. Each subject was put on a strict 3 week Low Carb High Fat diet consisting of only 30 grams of carbohydrates per day.

Results

BMR was reduced by an average of 4,4% which was significant (P<0,05). HDL, LDL and total cholesterol were increased significantly (P<0,01) by 21, 25 and 22%, respectively. There were no significant differences in LDL/HDL ratio, triglycerides or blood pressure. Blood glucose concentration was reduced by an average of 12%, however the reduction was not statistically significant. Percentage body fat was significantly lowered with 8,7% (P<0,01) and fat mass with 11% (P<0,01). The fat free mass showed no significant difference between pre- and post-tests. The waist circumference was significantly decreased by 2,3% (P<0,05) and average body weight of 1,24 kg (P<0,05). The hip dimension showed no significant difference between pre- and post-tests.

 

Conclusion

The results of this study indicate negative effects on the blood lipid profile after 3 weeks of LCHF diet, which could lead to serious consequences such as cardiovascular disease and depression provided that the effect is progressively enhanced.

Place, publisher, year, edition, pages
2011.
Series
Examensarbete, 2011:7
Keyword [en]
LCHF, Low Carb High Fat, normal weight, diet, weight loss, bloodlipids, nutrition
Keyword [sv]
LCHF, Low Carb High Fat, diet, viktminskning, normalvikt, blodfettprofil, Lågkolhydratkost, högfettkost, nutrition
National Category
Nutrition and Dietetics
Identifiers
URN: urn:nbn:se:gih:diva-1783OAI: oai:DiVA.org:gih-1783DiVA: diva2:408589
Uppsok
Medicine
Supervisors
Examiners
Available from: 2011-04-05 Created: 2011-04-05 Last updated: 2011-04-07Bibliographically approved

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