Paras mahdollinen tieteellinen näyttö kontrolloiduista tutkimuksista vuosina 2003-2018 kertoo sen yksiselitteisesti. Tähän on koostettu kaikki RCT (kontrolloidut tutkimukset), jotka ovat tilastollisesti merkittäviä lopputulokseltaan. Tutkimuksia löytyy kaiken kaikkiaan 31 kpl. Tilastollisesti merkitsevä lopputulos vahvistaa tutkimuksen tarkkuutta ja parantaa näyttöä entisestään.

Vähähiilihydraattinen ruokavalio on tehokkaampi painonpudotuksessa jokaisessa tutkimuksessa. Mitä alemmaksi hiilihydraateissa mennään, sitä tehokkaammin paino käytännössä putoaa.

Näihin tutkimuksiin on valikoitunut vähähiilihydraattisen ruokavalion määritelmäksi 130g tai vähemmän/ per päivä hiilihydraatteja ja vähärasvaiseksi ruokavalioksi on määritelty alle 35E% rasvan osuus.

Tiede osoittaa, että vähähiilihydraattinen korkeampi rasvainen ruokavalio on kiistatta tehokkaampi painonpudotukseen, kuin ns. perinteinen ruokavalio (vähärasvainen korkeahiilihydraattinen).

Mitkä ovat seuraukset olla ottamatta huomioon tätä tosiasiaa hoidettaessa painonpudotusta?Meidän on saatava näyttöön perustuvat hoitomallit mukaan ohjeistuksiin oli sitten kyse lihavuudesta, metabolisesta oireyhtymästä tai tyypin 2 diabeteksesta. Pyritään yhdessä vaikuttamaan siihen, että näin olisi tulevaisuudessa.

 

Lähteet:

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[2] A Low-Carbohydrate as Compared with a Low-Fat Diet in Severe Obesity. Samaha et al.

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[9] Comparison of the Atkins, Zone, Ornish, and LEARN Diets for Change in Weight and Related Risk Factors Among Overweight Premenopausal Women The A TO Z Weight Loss Study: A Randomized Trial. Gardner et al. http://jama.jamanetwork.com/article.aspx?articleid=205916

[10] Low- and high-carbohydrate weight-loss diets have similar effects on mood but not cognitive performance. Halyburton et al. http://ajcn.nutrition.org/content/86/3/580.long

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[12] The effect of a low-carbohydrate, ketogenic diet versus a low-glycemic index diet on glycemic control in type 2 diabetes mellitus. Westman et al. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2633336/

[13] Weight Loss with a Low-Carbohydrate, Mediterranean, or Low-Fat Diet. Shai et al.

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[14] Effects of weight loss from a very-low-carbohydrate diet on endothelial function and markers of cardiovascular disease risk in subjects with abdominal obesity. Keogh et al. http://ajcn.nutrition.org/content/87/3/567.long

[15] Carbohydrate Restriction has a More Favorable Impact on the Metabolic Syndrome than a Low Fat Diet. Volek et al. http://link.springer.com/article/10.1007/s11745-008-3274-2

[16] Efficacy and Safety of a High Protein, Low Carbohydrate Diet for Weight Loss in Severely Obese Adolescents. Krebs et al. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2892194/

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[20] Effects of a Low Carbohydrate Weight Loss Diet on Exercise Capacity and Tolerance in Obese Subjects. Brinkworth et al. http://onlinelibrary.wiley.com/doi/10.1038/oby.2009.134/full

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[22] Very Low-Carbohydrate and Low-Fat Diets Affect Fasting Lipids and Postprandial Lipemia Differently in Overweight Men. Sharman et al. http://jn.nutrition.org/content/134/4/880.long

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