Weight Loss Tips & Myths | The Science of Weight Loss



Jul 06, 2020
34.7k views

Weight loss tips. What the science of obesity and weight loss teaches us about hormones, carbohydrates and fat. Common myths and weight loss tips to help you succeed.

Weight loss tips like portion control, cutting calories and avoiding carbs miss the point.

"just eat less calories. Less calories, less weight". that assumes we burn calories at a constant rate. When we lose weight our hormones (leptin) change and we burn less calories. Effort to eat less may go to waste. Hormone changes also make us hungrier. We try to ditch the fat stores, our body holds on to them.

So people lose weight then hit a plateau or put the weight back on. This doesn't mean calories don’t matter for weight loss. Calories matter.

People struggle with weight loss when they try to ‘eat less’.
"So it’s impossible to lose weight? That’s your weight loss tips?"

no! one model of weight loss suggests that calories are not all created equal and the main cause of obesity and weight gain are carbohydrates and insulin.

"he better get to the weight loss tips..."

model: cutting carbs is the key to weight loss. Millions flocked to low carb diets. Is cutting carbs really the key to weight loss?

2 weight loss diets, 30% less calories, in 1 those calories came from carbohydrate, in the other from fat. carbohydrate theory says only low carb diet should deliver weight loss, low fat should do nothing. both led to weight loss. the low fat diet even did a little better.

"so the weight loss tips are to cut calories from fat?"
The msg is not that low fat ‘wins’. Both diets led to weight loss. Cutting carbs wasn’t necessary and insulin didn’t seem to matter. Analysis: energy expenditure (calories burnt) and fat loss were better on low fat than low carb diets.

Maybe carbohydrate and insulin play a role in specific contexts. We can lose weight by cutting carbs. We can lose weight with or without cutting carbs! Low-carb diets not superior to other diets for weight loss.

"We’re here for weight loss tips, not studies"
studies are artificial. easy to over-eat. maybe cutting carbs doesn’t burn more calories but makes us feel fuller so we eat less?

People eating ad lib ate more on a low carb diet than on low fat. 700 calories /day. And lost less fat. Maybe low fat food was nasty? They rated both diets equally satisfying.

Data doesn't support insulin as main driver of obesity. low carb vs low fat is a distraction. All weight loss tips avoid ultraprocessed foods (refined carbohydrates, sugary drinks). People on processed diet eat more calories and put on more fat even if macronutrients are matched.

Calorie density. Calorie dilute foods make us feel full with less calories. Fiber. Microbiome. Unprocessed whole foods are well accepted.

"trying to ‘eat less’ is ineffective weight loss tip; fat loss makes us burn less calories and feel hungrier; carbs and insulin are not key to weight loss, cutting carbs not necessary; avoiding ultraprocessed foods like refined carbs and sugary drinks is common weight loss strategy. Other weight loss tips?"

We can lose weight on unprocessed diet, neither fat nor carbs seem to be key. But some may do better on low carb, low fat, or intermittent fasting. low carb can be done without cutting fiber or eating a lot of saturated fat.

We don’t want to lose weight, we want to lose excess fat. The Scale can reward losing water weight or muscle mass. Exercise with weight lifting and adequate protein intake

weight loss: When well rested, we crave less high calorie foods and eat smaller portions. sleep optimizes your metabolism and appetite.

weight loss is about sticking with diet. Avoid sacrifice diets. Build dietary pattern you love. Video: meal timing, eating at certain times of the day can help weight loss even without cutting calories. Strategies to cut processed foods like refined sugar

Facebook: facebook.com/DrGilCarvalho
Twitter: twitter.com/NutritionMadeS3
Animations: Even Topland @toplandmedia
Footage: Pixabay; Pexels; Nourishable

References:
ncbi.nlm.nih.gov/pmc/articles/...
pubmed.ncbi.nlm.nih.gov/26278052/
ncbi.nlm.nih.gov/pmc/articles/PMC5568065/
lipidjournal.com/article/S1933...
jamanetwork.com/journals/jama/fullarticle/2673150
osf.io/preprints/nutrixiv/rdjfb/
pubmed.ncbi.nlm.nih.gov/311050...
webmd.com/diet/sleep-and-weigh...

Disclaimer: The contents of this video are for informational purposes only and are not intended to be medical advice, diagnosis, or treatment, nor to replace medical care. The information presented herein is accurate and conforms to the available scientific evidence to the best of the author's knowledge as of the time of posting. Always seek the advice of your physician or other qualified health provider with any questions regarding any medical condition. Never disregard professional medical advice or delay seeking it because of information contained in Nutrition Made Simple!.

#NutritionMadeSimple #GilCarvalho

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