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Saturday 25 May 2013

New Analysis: LCHF Best For Long-Term Weight and Health Markers !

I have lost count of the times, I have read about a lowcarb diet only to discover, the trial subjects were consuming anything but a lowcarb diet. Some of these so called lowcarb diets exceeded 150 carbs per day. For me a lowcarb diet is 50 carbs per day or less. The study below fit’s the bill, and states “a diet with no more than 50 g carbohydrates” I know a diet of 50 carbs per day gives me a huge range of foods to choose from. If you are considering going lowcarb to control your weight or diabetes have a Google around, and you will quickly see, lowcarb does not have to be either boring or repetitive.

Eddie

 

Very Low -carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: a meta-analysis of randomised controlled trials.

 

Abstract 2013 May

 

The role of very-low-carbohydrate ketogenic diets (VLCKD) in the long-term management of obesity is not well established. The present meta-analysis aimed to investigate whether individuals assigned to a VLCKD (i.e. a diet with no more than 50 g carbohydrates/d) achieve better long-term body weight and cardiovascular risk factor management when compared with individuals assigned to a conventional low-fat diet (LFD; i.e. a restricted-energy diet with less than 30 % of energy from fat). Through August 2012, MEDLINE, CENTRAL, ScienceDirect, Scopus, LILACS, SciELO, ClinicalTrials.gov and grey literature databases were searched, using no date or language restrictions, for randomised controlled trials that assigned adults to a VLCKD or a LFD, with 12 months or more of follow-up. The primary outcome was body weight. The secondary outcomes were TAG, HDL-cholesterol (HDL-C), LDL-cholesterol (LDL-C), systolic and diastolic blood pressure, glucose, insulin, HbA1c and C-reactive protein levels. A total of thirteen studies met the inclusion/exclusion criteria. In the overall analysis, five outcomes revealed significant results. Individuals assigned to a VLCKD showed decreased body weight (weighted mean difference - 0·91 (95 % CI - 1·65, - 0·17) kg, 1415 patients), TAG (weighted mean difference - 0·18 (95 % CI - 0·27, - 0·08) mmol/l, 1258 patients) and diastolic blood pressure (weighted mean difference - 1·43 (95 % CI - 2·49, - 0·37) mmHg, 1298 patients) while increased HDL-C (weighted mean difference 0·09 (95 % CI 0·06, 0·12) mmol/l, 1257 patients) and LDL-C (weighted mean difference 0·12 (95 % CI 0·04, 0·2) mmol/l, 1255 patients). Individuals assigned to a VLCKD achieve a greater weight loss than those assigned to a LFD in the long term; hence, a VLCKD may be an alternative tool against obesity.

Link to study here.

3 comments:

tess said...

FINALLY "low-carb" trials are becoming truly low-carb....

We finally bought "Art and Science of LC Living" and I'm impressed! If any of your readers haven't tried it, I recommend it heartily.

Anonymous said...

Also if you google Tanya Zilberter she has quite a few papers that discuss ketogenic ratio and the neurological benefits of a (truly) ketogenic diet. (One of my blog commenters pointed me in her direction.)

Lowcarb team member said...

Many thanks Tess and Carole for your comments and recommendations.The team thought this a good study. Hope all of you who have read it thought it an interesting and worthwhile read.

All the best Jan