Entries by Tamzyn Murphy

Night-shift work promotes insulin resistance and weight gain

By Tamzyn Murphy, RD, MSc (dist.)   Night shift workers are prone to conditions associated with insulin resistance (Hidalgo M, 2010) – obesity (Peplonska B et al., 2015; Chen J et al. 2009) and metabolic disease, diabetes (Pan A et al, 2011) and cardiovascular disease (Knutsson & Boggild, 2011).   Melatonin – the sleep hormone […]

LCHF and kidney function

Except from MSc (Med) Physiology Dissertation (UCT), by Tamzyn Murphy (RD)   Safety concerns have been raised over low carbohydrate high fat (LCHF) diets’ relatively high protein content, for renal function [100]. While protein intake on LCHF diets may be higher than on conventional diets, it seldom exceeds 30 % total daily energy intake (TDEI) […]

4-WEEK HEALTHY WEIGHT CHALLENGE: The Low Carb Way

We are excited to be launching our August  4-WEEK HEALTHY WEIGHT CHALLENGE: The Low Carb Way! An online support program for people wanting to lose weight, achieve a healthier lifestyle and combat metabolic disease. Prepare to reclaim your body and your health, as our Registered Real Food Dietitians, Bridget and Tamzyn, guide you every step of the […]

Preparing legumes to maximise nutrition and minimise adverse effects

By Tamzyn Murphy BSc Med(Hons) Human Nutrition and Dietetics, RD   Legumes (peas, beans, lentils and peanuts) contain pesky and destructive anti-nutrients, which bind to other nutrients in food, inhibiting their absorption. Anti-nutrients also irritate the gut-lining, causing stomach trouble and making the gut ‘leaky’ – allowing proteins and other-usually ‘banned’ components through the gut wall […]

Can kids ‘Bant’?

By Tamzyn Murphy BSc Med(Hons) Human Nutrition and Dietetics, RD   We await the verdict of Prof Tim Noakes’ HPCSA trial over a tweet in which he “advised” a mother to wean her child onto LCHF food. In the meantime let’s take a closer look at the evidence regarding Banting and kids…   Today’s children are […]

Best first food for baby: Meat vs cereal

By Tamzyn Murphy BSc Med(Hons) Human Nutrition and Dietetics, RD   South African personality, sports scientist and Emeritus UCT Professor Tim Noakes is making news headlines again as the second and last day of the closing arguments of his “Baby Banting” trial before the Health Professions Council of South Africa (HPCSA) commences. The council is investigating […]

Diets that do and diets that don’t: Part 2 – The Paleo Diet

By Tamzyn Murphy BSc Med(Hons) Human Nutrition and Dietetics, RD   The Paleo diet, founded by researcher Loren Cordain (PhD), is based on what our caveman ancestors ate. It includes only the foods we’ve eaten for most of human history; which we’ve evolved to eat. Like Atkins, Paleo is a low carb, moderate protein, high fat […]

Diets that do and diets that don’t: Part 1 – The New Atkins Diet

By Tamzyn Murphy BSc Med(Hons) Human Nutrition and Dietetics, RD   People across the globe are getting fat and desperate – a profitable situation for those peddling fad diets. Obviously conventional nutritional wisdom has failed us – eating fewer calories (particularly less fat) and burning more by exercising doesn’t cut through the flab. It appears that […]