Not all protein is same: Fitness expert breaks down protein vs calorie comparison for ultimate weight loss

In the race to lose weight, protein often becomes the centre of attention. From shakes to snacks, many people track protein grams closely, believing more protein automatically leads to better fat loss. However, fitness and nutrition coach Kush Malhotra is urging people to look beyond protein numbers alone and pay closer attention to the calories that come with different protein sources. His message is clear: protein quality and calorie load can make or break weight-loss progress.

Protein grams vs calorie load

In a recent Instagram video, Malhotra explained that not all protein sources affect the body in the same way. He highlighted how the same amount of protein can come with very different calorie counts depending on the food. According to his breakdown, 20 grams of protein from whey protein contains roughly 110 calories. In comparison, the same 20 grams of protein from nuts can come with about 650 calories. Other examples include eggs at around 210 calories, protein oats at nearly 480 calories, chickpeas at about 370 calories, and full-cream milk close to 390 calories.

The comparison shows why some people struggle to lose fat even when they believe they are eating “healthy” protein-rich foods. Malhotra pointed out that several natural protein sources also contain fats and carbohydrates, which significantly increase total calories.


To simplify protein choices for those aiming to lose fat, Malhotra suggested that people focusing on lean protein intake should prioritise foods that provide at least 10 grams of protein per 100 calories. By this standard, whey protein easily qualifies, while options like nuts or full-fat dairy do not, despite their nutritional value.

He stressed that protein sources differ in efficiency. Foods such as whey deliver a high protein return with minimal calories, whereas foods like nuts provide protein along with fats and other nutrients, making them calorie-dense and less suitable for strict calorie deficits.

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Malhotra also clarified that higher-calorie protein foods are not unhealthy. Instead, their suitability depends on a person’s fitness goal. For fat loss, he advised choosing lean protein sources such as whey protein or egg whites to keep daily calorie intake under control. For overall health, energy, and long-term nutrition, he encouraged including natural protein sources like chickpeas, milk, and nuts, which also supply fibre, essential fats, and micronutrients.

What research says about high-protein diets

Medical resource WebMD supports the idea that higher protein intake can help with weight loss by improving fullness and controlling hunger. According to WebMD, gradually increasing protein in meals over a week may support weight management, but it should be done using nutritious food choices. It also cautions that high-protein diets are best followed for short periods and may not be suitable for everyone, especially people with existing health conditions. Consulting a doctor before making major dietary changes is strongly advised.

Sustainable weight loss depends on balanced eating habits that can be maintained long term. Lean meats, seafood, beans, soy, low-fat dairy, eggs, nuts, and seeds are all recommended protein sources, with emphasis on limiting saturated fat and avoiding processed meats.