Top 11 Diet Myths Debunked Scientifically

Dieting Myths

For a healthy and fit body maintaining a good diet is extremely vital. And to garner information about diet and nutrition most people turn up to the internet. Unfortunately, the internet is stuffed with baseless and false information regarding this subject. At Nutrabay we not only aim to provide you quality sports nutrition products but also quality information. In this article, we will be scientifically debunking the top 11 diet myths in the fitness industry.

#1 Eating Fats Makes You Fat

“Stop consuming fatty foods” is most likely the first household advice anyone gets, who is aiming to lose weight. Although, it is a fact that storing dietary fat as adipose tissues are easiest for the body between the four macronutrients (protein, carbohydrates, fats & alcohol). But the fat gain is essentially a function of total caloric intake throughout the day. Studies testing the effect of different macronutrient composition where fat intake varies from 20-83% confirms that dietary fats do not directly make you fat. It is overall caloric intake that matters.

#2 Carbs Make You Fat

Low-Carb diets are in trend from a while. The idea is that carbohydrates cause an insulin spike which is supposedly bad (According to Brainless Gurus) and causes fat gain. This process of converting carbohydrates into stored body fat is called ‘Denovo-Lipogenesis’ and studies have noted- it is a pretty inefficient process, only carbohydrates consumed in excess (beyond your body’s requirement) are stored as body fat. If you train at high intensity and move a lot throughout the day, you can enjoy more carbs. If you are sitting for the most part of the day, reduce your carb intake accordingly. Hence, carbohydrates do not make you fat. Only people with an inherent issue with metabolizing carbohydrates should be cautious of carbohydrates (eg- diabetic patients) 

#3 Egg Yolks Are Bad For You

Eggs are an excellent source of highly bioavailable protein. But we all have seen at least one ‘Bro’ separating the yolks from boiled eggs. Egg yolks gained a bad reputation for being high in dietary cholesterol (note dietary). And given that excess cholesterol causes heart diseases, yolks got demonized. In a study done by The American Journal of Clinical Nutrition, it was found that there is no connection between whole eggs and an increased risk of heart attack or stroke.

In fact, eating eggs may help prevent blood clots and reduce the risk of heart diseases. Apart reason could be: when your body is already ingesting cholesterol from foods, it suppresses its own production of cholesterol (excess of which is actually bad). Also, yolks contain Vitamin A, D, E, K and Omega 3s. And a recent study noted that consumption of whole eggs promotes greater stimulation of post-exercise muscle protein synthesis than consumption of egg whites in young men. Therefore, egg yolks are not just good for health but also good for gains.

#4 Some diets are superior to others such as Keto, IF, Paleo

Every now and then a new diet emerges in the world of fitness proclaiming itself to be revolutionary. However, independent and unbiased studies always confirm that the main pathway for fat loss in any diet is simply being in a hypocaloric state (see our detailed section on different diets). So, it is the ‘caloric deficit’ which is going to help you lose fat and there are no best diets. But whichever diet you can adhere to (in a caloric deficit), it is the best for you.

#5 A calorie is a calorie

Although “Calories in vs. Calories out” is the most important factor for fat loss. The IIFYM ideology (if it fits your macros) stretches it too far. Yes! Calories do count. But not all calories are the same. For example, the thermic effect of food (TEF) is the highest for protein. This means a lot of calories coming from lean protein foods (e.g. – chicken breast, fish etc.) will be lost during the digestion process. Therefore, you can get away by consuming an excess of protein without gaining excess body fat.

Another consideration is the overall nutrient composition of the food. For example, a chocolate bar and 2 slices of multigrain bread have nearly the same caloric content. But multigrain bread has a greater amount of fiber, vitamins and minerals which are key components for better health.

#6 Eating Too Much Protein Will Damage Kidneys

Kidneys are vital organs for filtration of waste compounds from the bloodstream and excreting it through urine. Many believe that high protein intake puts excess stress on kidneys for clearing the metabolites of protein, which can damage it. Although a high protein diet does put extra load on the kidneys, it is insignificant compared to the immense workload which is already being done by them. In an adult, the kidneys may filter around 48 gallons (180 litres) of blood every single day.

High protein intake can only be harmful to people with pre-existing kidney diseases, but the same doesn’t apply to people with healthy kidneys. So far there has been no study which shows an association between protein intake and kidney pathology. On the contrary, studies with very high protein intake ( up to 4g / Kg Body Weight) observed no parameters of kidney damage.

#7 Creatine Damages Kidneys

Creatine is a natural amino acid present in muscles. Supplemental Creatine increases the efficiency of ATP cycle in muscle cells, enhancing your strength and work capacity. Creatinine, on the other hand, is produced by the breakdown of creatine or phosphocreatine by your muscles. Under normal conditions, your body produces creatinine at a constant rate. Creatinine is filtered out of your blood by your kidneys and removed in the urine.

Creatinine itself is non-toxic but an elevated creatinine level indicates your kidneys are not filtering waste, some of which may be toxic. If you are currently consuming creatine, your blood test might show higher than normal levels of creatinine but it is not a true marker of poor kidney function (some other test will be required to draw a conclusion). Creatine is the most thoroughly studied sports supplement and studies have found no link between creatine monohydrate and kidney damage.

#8 Sugar is addictive

“Sugar is more addictive than Cocaine” this is a popular statement given by many pseudo fitness experts. This idea originated when tests revealed that brain pattern activity is similar after cocaine or sugar consumption. However, it is actually due to the brain’s dopamine release in response to sugar consumption, as your body feels good after consuming something sweet or savory.

The brain shows similar activity patterns in response to many other things such as sex, adventure activities etc. Other than brain pattern activity there has been no other similarity observed between sugar and cocaine intake. It is true that sugar is highly caloric dense, and reducing sugar intake is a good strategy for weight maintenance but sugar is not at all addictive like cocaine.

#9 Humans are Evolved To Eat Meat

“Humans are primitively Carnivores” This ideology is often preached by Keto and Paleo diet advocates. But research shows otherwise, as carnivores (tigers, lions etc) do not consume plants they have their own ability to synthesize Vitamin C (an essential vitamin for survival). If humans were evolved to eat only meat, they would also have this ability to synthesize Vitamin C.

Also, archaeologists have found evidence of grains (barley) in the dental plaques of human fossils as old as 30,000 years. Humans that dwelled near the poles had to rely primarily on animal meat but humans closer to the tropics did consume plant products.

#10 Paleo Foods Are What Our Ancestors Ate, Which Is Why They Were Lean

The paleo diet is another popular fad diet. The whole idea of this diet is: “Eat what our ancestors ate 15,000 years ago for a lean physique and longevity”. The primary foods in this diet are meat, nuts, fibrous vegetables and a small portion of fruits. Supposedly all food items which are naturally available in the wild, dairy and all agricultural products are restricted. Advocates of this diet proclaim that it allows you to eat an unlimited amount of food (paleo approved) without counting calories.

But till date, there has been no study which confirms this. Another thing worth mentioning is that none of the food items on a paleo diet list  (except meat) could possibly be accessed by palaeolithic ancestors. For example, this is a wild carrot which our ancestor actually ate.

But the carrot we eat today is much more reddish and sweet. Humans have modified carrots, bananas, broccoli and host of other ‘paleo approved’ foods. Thus, none of them actually exists naturally and technically they are all human-made foods. Therefore the whole ideology of this diet is baseless. Two reasons why our palaeolithic ancestors were actually lean: First the number of calories available for a given amount of food used to be very less

Second, they used to move a lot. Food was never available 24×7 like today to our ancestors, they used to walk and run for several hours for one meal.

#11 You Can Not Eat Carbohydrates at Night

This is perhaps one of the biggest and most prevailing diet myth. To date, many fitness experts recommend minimizing or eliminating carb intake during the night. The assertion is- as you will be going to sleep, your metabolism will slow down and those carbohydrates will have a greater chance of being stored as fat in comparison to if they were consumed earlier in the day when you are active so that they have a greater probability of being burned. 

Seems reasonable enough. A research done by Katoyose et al. and the team showed that energy expenditure decreased during the first half of sleep approximately 35%.  However, it was also noted that during the latter half of sleep energy expenditure significantly increased associated with REM sleep.  So, there is a rise and fall in sleeping metabolic rate (SMR), And the overall effect metabolism stays the same. Another interesting study done by a group of Israeli researchers kept people on a calorie-restricted diet for a period of 6 months and split them into two groups, a control group, and an experimental group. 

Each group consumed the same amount of calories, protein, carbohydrates, and fat but their carbohydrate intake period varied.  The control group ate carbs throughout the day, whereas the experimental group consumed the majority of their carbohydrate intake (approximately 80% of the total) at the night.  What they found after 6 months may surprise you. 

Not only did the experimental group who consumed the majority of their carbs at night lost significantly more weight and body fat than the control group, but they also experienced more satiety.

13 thoughts on “Top 11 Diet Myths Debunked Scientifically

  1. Arnab ganguli says:

    Please suggest a full day diet plan .my weight is 69 kg and 5.6″.also suggest the suitable protine powder.i am going to gym every day.

  2. Vinay pratap Singh says:

    Yash my body is in shaped but i want to gain my muscles my height is 5/11
    And weight is 64 what should i do.

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