How Much Protein Do You Actually Need?

A practical guide to choosing a protein target for building muscle, retaining muscle during fat loss and making meals more filling.

Nutrition

6 min read

How Much Protein Do You Actually Need?

A practical guide to choosing a protein target for building muscle, retaining muscle during fat loss and making meals more filling.

Nutrition

6 min read

The short answer

Your protein target should reflect what you are asking your body to do. Needs are not identical for someone who is sedentary, someone dieting and someone trying to gain muscle through resistance training.

THE SHORT ANSWER

If you regularly strength train, aim for roughly 1.6 to 2.2 grams of protein per kilogram of body weight per day. You do not need to hit the exact number every day. A repeatable range is more useful than a perfect target you cannot maintain.

Choose the right protein range

Protein helps repair and maintain muscle, supports recovery and can make meals more filling. The useful target depends on your goal and training. A basic reference intake for generally healthy adults is around 0.75 to 0.8 grams per kilogram. During fat loss, roughly 1.2 to 1.6 grams per kilogram is a practical range for fullness and muscle retention. For people who strength train, roughly 1.6 to 2.2 grams per kilogram is a reliable range for gaining or retaining muscle. Start near the lower end and only move higher when it helps your goal or food preferences. Total daily protein matters most. Spread it across three or four meals and use foods you can repeat consistently.

Protein target calculator

Choose the range that matches your goal. Calculate a useful daily target. Spread protein across three or four meals. Build meals around foods you already enjoy. Review what is realistic enough to repeat.

Strength training and muscle retention

Strength training and muscle retention

Aim for roughly 1.6 to 2.2 g/kg per day. Start near 1.6 g/kg and move higher only when it suits your goal, appetite or food preferences. The upper end is useful, but it is not compulsory.

General health and fat loss

General health and fat loss

Around 0.75 to 0.8 g/kg is a basic reference intake for generally healthy adults. During fat loss, roughly 1.2 to 1.6 g/kg is a more practical range for fullness and supporting muscle retention, especially alongside resistance training.

Spread protein across the day

Total daily protein matters most. For most people, three or four meaningful servings across the day is easier than eating very little until one enormous evening meal. Around 25 to 40 grams per meal is a useful starting point, adjusted for your size and total target.

Build meals without overthinking it

Build each main meal around a clear protein source, then add carbohydrates, vegetables or fruit and fats according to your calorie needs. Useful options include meat, fish, eggs, Greek yoghurt, tofu, tempeh, beans, lentils and convenient protein foods. Protein powder is optional, not essential.

Common mistakes

Practical checklist

Choose the range that matches your goal
Calculate your daily target
Plan three or four protein opportunities
Include protein at breakfast and lunch
Keep convenient backup foods available
Track a few normal days before changing anything
Adjust if the target makes the diet harder to follow
Keep strength training in the plan where possible

When individual help may be useful

If the calculation is easy but fitting it around your appetite, food preferences, budget and calories is not, coaching can turn the target into a plan you can actually repeat.

JAMIE MUIR PERSONAL TRAINING

Practical resources for losing body fat, building muscle and making training easier to repeat in normal life.

The information on this site is general education only and is not medical advice. © 2026 Jamie Muir Personal Training.