Free tool

Protein calculator: how much you need a day and at each meal

Tell us your weight, what you are aiming for and how many meals you have. We will work out how much protein you need a day, how much at each meal and how much a shake provides.

Calculator

What is your goal?
How many meals do you have a day?

For healthy adults. If you have kidney disease or follow a special diet, check with your doctor first.

Your protein

Estimate

Per day-
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Per kg of body weighta day
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At each meal-
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One 50 g shakeGourmet Isolate Protein
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What you can do

An approximate estimate using the EFSA reference (0.83 g/kg) and the recommendations of the International Society of Sports Nutrition (1.4-2.0 g/kg). It does not replace professional advice.

How we calculate it

Your daily protein, depending on your goal

Your daily protein, depending on your goal0.83 g/kgif you do not exercise1.4-1.6 g/kgto stay fit1.6-2.0 g/kgto build muscle1.8-2.0 g/kgto lose fat withoutlosing muscle
Grams per kilo of body weight a day. EFSA reference for adults 1 and the 1.4-2.0 g/kg range the ISSN considers sufficient if you exercise 2.

How we calculate it

  • If you do not exercise: 0.83 g per kg of body weight a day, EFSA's population reference intake for adults, including older adults 1.
  • If you exercise: within the range of 1.4-2.0 g per kg that the International Society of Sports Nutrition (ISSN) considers sufficient for most people who exercise 2. We use 1.4-1.6 g to stay fit, 1.6-2.0 g to build muscle and 1.8-2.0 g to lose fat without losing muscle. During a fat-loss phase in a calorie deficit there are even higher recommendations, which we explain in the fat-loss guide.
  • Why not more: a meta-analysis of 49 trials found no further gain in muscle mass above about 1.62 g per kg a day 3.
  • At each meal: we divide the total between your meals. As a reference, the ISSN suggests servings of about 0.25 g per kg, or 20-40 g 2.

If you fall short

Food first; then the shake

Food first; then the shakeFind the meal that falls shortDivide your total between your meals.Add a portionMeat, fish, eggs, dairy or pulses.If you still fall short, a shakeA single scoop provides about 21 g of protein.
The ISSN suggests servings of about 0.25 g per kg, or 20-40 g 2. A 50 g serving of our Gourmet Isolate Protein provides 42.8 g.

If you fall short

Food comes first: add a portion of meat, fish, eggs, dairy or pulses to the meal that falls short. If you still do not reach your target, a shake is the most convenient way: our Gourmet Isolate Protein provides 42.8 g per 50 g serving, or about 21 g with a single scoop.

Protein contributes to a growth in muscle mass. Protein contributes to the maintenance of muscle mass. 4 Even so, what really builds muscle is strength training. A varied and balanced diet and a healthy lifestyle are important.

Frequently asked questions

How much protein do I need a day?

If you do not exercise, EFSA's reference for adults is 0.83 g per kg of body weight a day. If you exercise, the International Society of Sports Nutrition considers 1.4-2.0 g per kg sufficient for most people.

How much protein can I have in one meal?

The International Society of Sports Nutrition suggests servings of about 0.25 g per kg of body weight, or 20-40 g, with 700-3,000 mg of leucine. What counts most is your daily total.

Does more protein mean more muscle?

Up to a point. A meta-analysis of 49 trials found no further gain in muscle mass above about 1.6 g per kg of body weight a day.

Do I need a shake to reach my target?

Not necessarily. Food should be the foundation: meat, fish, eggs, dairy or pulses. A shake is a convenient way to top up a meal that falls short.

Sources

  1. EFSA. EFSA sets population reference intakes for protein. Press release, 9 February 2012. View publication
  2. Jäger R, Kerksick CM, Campbell BI, et al. International Society of Sports Nutrition position stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20. View publication
  3. Morton RW, Murphy KT, McKellar SR, et al. A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. Br J Sports Med. 2018;52(6):376-384. View publication
  4. Commission Regulation (EU) No 432/2012 establishing a list of permitted health claims made on foods. View publication