Protein Requirements to Support Weight Loss

Weight loss is not about cutting calories; it is about choosing the best calories. And the best macronutrient for the job is protein.

Most people are obsessed with cutting calories. However the composition of the calories is equally important. Scientific research has proven time and again the benefits of adequate protein during weight loss.

At MyHomeDoc Telehealth we have seen many people fail not because they are consuming too much food but because they are not consuming the optimal amount of macronutrients.

In the following sections you will learn the requirements of protein for effective weight loss.

Why Protein Matters for Fat Loss

Satiety and Appetite Control

Protein is the most satiating macronutrient. Protein affects the level of ghrelin, the hunger hormone. Protein also affects peptide YY the satiety hormone. Increasing the protein content during weight loss results in the feeling of being full.

Science has proven that an increase in the protein content of the daily calories by 15% to 30% can lead to the reduction of the total calories by 400 calories/day without any deliberate effort.

Protein is the “hunger stabilizer.” Unlike carbohydrates protein reduces the blood sugar level.

This is the reason why the steady protein content reduces the late night snacks.

Thermic Effect of Food (TEF)

The body consumes calories even before the food is digested. Protein has the highest thermic effect.

Protein: 20 to 30% of the calories are burned

Carbs: 5 to 10% of the calories are burned

Fats: 0 to 3% of the calories are burned

So in other words if you consume 100 calories of protein your body can burn as much as 30 calories processing the protein.

A constant protein intake for weight loss will increase your energy expenditure a little bit.

It is not magic but math.

Muscle Preservation During Calorie Deficit

When losing weight it is a fact that apart from losing fat a certain amount of muscle mass is lost too unless a proper protein intake is followed.

Muscle mass determines the resting metabolic rate and the more muscles are present the higher the resting metabolic rate.

In this regard a specific protein intake becomes necessary otherwise muscles may be burned for energy.

A protein intake of 1.6 to 2.2 g/kg body weight has been found to preserve lean muscles during a calorie deficit.

How Much Protein Do You Really Need?

The RDA for protein is 0.8 g/kg body weight which is necessary to avoid protein deficiency.

But to follow a protein intake for weight loss a specific amount of protein is necessary and for this the following has been found to be necessary:

• 1.2 to 1.6 g/kg body weight for sedentary people
• 1.6 to 2.2 g/kg body weight for people who are physically active
• 2.4 g/kg body weight in extreme fat loss conditions

If for example your weight is 75 kg or 165 lbs then the protein intake necessary for weight loss is 90 to 150 grams of protein.

To follow a protein intake for weight loss it is necessary to understand how much protein is necessary and to do this a certain amount of math has to be understood.

For example to find out the protein intake necessary for weight loss the following math has to be applied:

75 kg body weight * 1.6 = 120 grams of protein necessary each day.

To follow a protein intake for weight loss it is necessary to understand the math behind protein and to do this a certain amount of math has to be applied.

Protein Intake for Different Goals

Protein for Muscle Gain vs Fat Loss

There is a certain amount of protein necessary for muscle gain and fat loss and in this regard there is a certain amount of protein necessary for both although the protein intake for each purpose may differ a little bit.

For the purpose of muscle gain the amounts are generally between 1.6 to 2.2 g/kg. This is the same optimal range for weight loss. The difference is the calories.

In summary the amounts are the same but the calories are different.

Protein for Body Recomp

If the goal is body recomposition losing fat while gaining muscle the amounts are at the higher end of the spectrum 1.8 to 2.2 g/kg.

This is particularly effective for the beginner and the returning athlete as the body is attempting to build and lose at the same time.

Older Adults and Protein Requirements

As the body ages past 40 anabolic resistance begins to increase. This means the body becomes less efficient at utilizing protein.

An increase in protein amounts for weight loss in the older population is necessary to avoid the progression of sarcopenia. The recommended amounts are 1.2 to 2.0 g/kg. To optimize the results the amounts are spread evenly across meals. This is around 30 to 40 grams of protein per meal.

How to Calculate and Track Protein

To make the most out of the recommended protein intake:

1. Calculate the total weight in kilograms by dividing the total weight by 2.2
2. Multiply the total weight by the recommended protein amounts
3. Divide the total by the total meals

For instance:

1. 180 lbs ÷ 2.2 = 82 kg
2. 82 kg x 1.8 = 148 grams
3. Divide the total by the total meals which is 4
4. 148 ÷ 4 = 37 grams

In order to make the process easier the total weight can change. It is recommended to calculate the total protein amounts on a weekly basis.

Knowing the calculation process is the key to success.

Best Protein Sources for Fat Loss

However not all of it is of the same quality. 

Animal Based Sources of Protein

• Chicken Breast: 31g of protein per 100g of food
• Salmon: 22g of protein per 100g of food
• Eggs: 6g of protein per egg
• Greek Yogurt: 10g of protein per 100g of food

These sources of protein have all the essential amino acids. 

Plant Based Sources of Protein

• Lentils: 9g of protein per 100g of cooked food
• Tofu: 8g of protein per 100g of food
• Quinoa: 4g of protein per 100g of food

These sources of plant based protein should be combined to ensure the presence of all essential amino acids. Good sources of protein should be chosen to ensure that calorie intake is kept in check. 

Protein Supplements

Protein supplements should be chosen based on the following considerations:

Whey protein is easily digested and casein is slow digesting. 

Protein Timing and Distribution

While it is true that the total amount of protein is the most important factor distribution is also crucial. 

For an 80kg person it is advisable to have 0.3 to 0.5g/kg of protein per meal. This amounts to 24 to 40g of protein per meal. 

Having 3 to 4 meals with protein can go a long way in retaining muscle mass. Having more protein for breakfast can prevent cravings. 

Protein and Metabolism

Having more protein can go a long way in retaining your resting metabolic rate. Without sufficient amounts of protein it is likely that your metabolism will slow down. A structured diet is more likely to work compared to a crash diet. 

Common Myths About High Protein Diets

Myth 1: A high protein diet can damage your kidneys. 

While there is no conclusive evidence of damage to the kidneys of people with normal kidney function people with kidney problems should consult a doctor before taking high amounts of protein. 

Myth 2: Too much protein converts to fat. 

Only if your calorie intake is high. If your calorie intake is under control it is easier to lose fat with more amounts of protein. 

Myth 3: Too much protein is always good

After that the benefits will be minimal. Balance.

Sample High Protein Day Plan

Example for an 1800 calorie day:

• Breakfast: Greek yogurt, berries, chia seeds (35g protein)
• Lunch: Grilled chicken salad with olive oil (40g)
• Snack: Protein shake (30g)
• Dinner: Salmon, quinoa, roasted vegetables (45g)

Total protein intake for the day: approximately 150g. This helps with satiety and muscle retention while losing weight.

Protein for Body Recomp and Advanced Goals

For body recomp monitor your progress weekly and adjust your protein intake if your strength levels dip. Resistance training with high protein intake will expedite your results. You can transition from a body recomp phase to a fat loss phase by keeping your protein high and your calorie intake lower making the transition smoother.

Practical Implementation Strategy

1. Determine your calorie needs.
2. Make protein intake your priority.
3. Use the remaining calories for carbohydrates and fats.
4. Incorporate strength training 3 to 4 times a week.
5. Monitor your progress.
6. If hunger persists slightly increase your protein intake keeping it within the recommended ranges.
7. If fat loss plateaus check your overall calorie intake not just your protein intake.

Long Term Sustainability

Sustainability is what matters most. High protein diets might be easier to stick with because they help reduce hunger. Research has shown that people with higher protein intake have better success with weight loss maintenance over 12 months compared to those with lower protein intake. Consistency is key and that is more important than extremes.

Final Takeaways

The benefits of strategic protein use for weight reduction:

•  Helps reduce hunger
•  Helps maintain muscle
•  Helps burn more calories
•  Helps improve body composition

The recommended protein intake for weight reduction: 1.6 or 2.2 grams of protein per kilogram divided into portions and combined with resistance training and then monitored with consistency.

Frequently Asked Questions

How do you accurately compute protein intake without the aid of an app?

Calculate your weight in kilograms and then multiply it by 1.6 or 2.2 and then divide it into equal portions and compute the grams per serving based on food labels.

What happens if you do not compute your protein intake while you are dieting? 

Muscle and metabolism might be lost and it might compromise the quality of your fat loss.

Is the protein needed for muscle gain the same as the one needed for fat reduction?

The grams of protein needed per kilogram might be the same but the calories differ. Excess calories result in muscle gain while a caloric deficit results in burning fat.

Can a beginner use high protein for body recomposition? 

Yes they can especially when combined with resistance training.

How much protein is too much? 

Any more than 2.4 grams of protein per kilogram might be too much and it might compromise your health.

The information shared above is for general information only and should not be taken as a medical opinion. Always consult a doctor for a medical opinion.