Hypocaloric diet: principles, effectiveness and precautions to know

The limits and precautions of the low-calorie diet

Although the principle of calorie deficit is well documented, the low-calorie diet also has certain limitations.

Fatigue and loss of energy

A significant reduction in energy intake can lead to:

• fatigue;
• reduced concentration;
• reduced physical performance.

These effects are common when calorie restriction is too severe or poorly balanced.

Frustration and loss of motivation

Some people also experience:

• a feeling of deprivation;
• increased food cravings;
• difficulty maintaining the diet over the long term.

A study of overweight adults showed that after six months of calorie restriction, despite significant weight loss, feelings of hunger and craving remained high, contributing to frustration and difficulties in maintaining the diet (7).

These factors can therefore complicate the continuation of a diet and encourage people to give up.

Nutritional imbalances

If the diet is too restrictive or poorly planned, it may be difficult to cover micronutrient requirements.

The risks relate in particular to:

• certain vitamins;
• essential minerals;
• essential fatty acids.

These imbalances can appear in certain low-calorie menus that are too restrictive. It should be noted that very low-calorie diets can also modify the intestinal microbiota, affecting bacterial abundance and composition (8).

Finally, results can vary greatly depending on:

• individual metabolism;
• the level of physical activity;
• the duration of calorie restriction;
• the initial context.

When should a low-calorie diet be considered?

A low-calorie diet for weight loss can be considered when energy intake exceeds the body's needs.

However, certain situations require specific guidance. Medical or nutritional advice is recommended:

• if you are severely overweight or obese;
• in the presence of metabolic diseases;
• in the event of persistent fatigue;
• when the diet is followed over a long period.

Support from a healthcare professional helps to adapt the calorie restriction and limit nutritional imbalances.

Following a low-calorie diet does not necessarily mean depriving oneself, but rather adopting a more balanced, progressive dietary lifestyle tailored to one's needs.

When properly supervised, it can contribute to lasting weight loss and promote better nutritional balance.

How can you adopt a more balanced and sustainable low-calorie approach?

Adopt the right reflexes

To limit undesirable effects, a gradual approach to calorie deficit is recommended. Several strategies can contribute to a more balanced low-calorie diet:

• give priority to proteins, which contribute to the growth and maintenance of muscle mass;
• increasing fibre intake, which is known to promote satiety;
• maintain an adequate intake of micronutrients;
• Avoid excessive restrictions to avoid the yo-yo effect.

It is also important to integrate diet into an overall healthy lifestyle, including:

• regular physical activity
• getting enough sleep
• good stress management.

A meta-analysis comparing different diets in overweight or obese adults showed that, whatever the composition (low-carbohydrate or low-fat), all low-calorie diets resulted in significant weight loss at 6 and 12 months, underlining the importance of long-term adherence rather than the type of diet (9).

Nutritional basis for a low-calorie diet

Generally speaking, a low-calorie diet proposes between 1,200 and 1,800 kcal per day, to be adapted according to sex, age, level of physical activity and weight loss goal.

Protein

Protein helps maintain muscle mass and normal bone structure. Sufficient intake may increase satiety, which can help to better control energy intake.

Discover Native Whey Protein Isolate, the purest powder formula for preserving muscle mass and promoting satiety.

Fibre

Dietary fibre is thought to promote a lasting feeling of satiety, which can reduce snacking cravings.

Discover Psyllium Husk, a formula rich in soluble fibre, ideal for reducing the feeling of overeating and promoting satiety.

Multivitamins

When energy intake is reduced as part of a low-calorie diet, a multivitamin supplement can help to cover vitamin and mineral requirements.

Discover Daily 3, a complete multivitamin formula to help maintain a normal energy metabolism and avoid deficiencies.

Omega-3

The fatty acids EPA and DHA contribute to normal heart function and overall nutritional balance.

Discover Super Omega 3, a natural formula designed for metabolic support, with optimal bioavailability.

Supplements designed for direct slimming action

Some studies suggest that the probiotic strain Lactobacillus gasseri could influence the composition of the intestinal microbiota, a factor studied in the regulation of body weight (10).

Find out more about Lactobacillus Gasseri, the probiotic that helps maintain a normal intestinal microbiota, which can help you lose weight.

Saffron is being studied for its potential effect on managing food cravings and snacking behaviour (11).

Discover Weight Loss Booster, which contains Satiereal®, a patented extract of saffron stigmas clinically studied for its potential ability to help control eating behaviour.

In addition, certain algae are being researched for their possible interaction with lipid or carbohydrate absorption (12).

Discover Fat & Carb Blocker, which contains Ascophyllum nodosum extract, studied for its potential ability to act as a fat burner, combined with grape seed extract.

Finally, berberine and certain associated compounds are being studied for their potential influence on certain metabolic pathways involved in regulating appetite(13).

Discover GLP-1 Booster Formula, designed to stimulate the production of GLP-1 (appetite-suppressing hormone), with a potential influence on certain metabolic pathways involved in regulating appetite.

These supplements can help you to lose weight gradually and comprehensively, by combining them with a balanced diet, regular physical activity and a healthy lifestyle.