How Much Protein Do You Need Per Day? (2026)

Protein requirements depend on your body weight, activity level, and goal — whether you are trying to build muscle, lose fat while preserving lean mass, or simply maintain your health. The general population guideline of 0.8 g per kilogram of body weight is a minimum to prevent deficiency, not an optimal target for anyone who exercises. Use the Daily Protein Calculator to get a precise number based on your actual situation.

How Much Protein You Actually Need

Research consistently shows that active individuals need significantly more protein than sedentary adults. The table below summarises the current evidence-based recommendations by goal and activity level.

The higher end of each range applies when you are in a calorie deficit, training hard, or new to resistance training. Older adults need more protein than younger sedentary peers because muscle protein synthesis becomes less efficient with age — a condition called anabolic resistance.

Distributing Protein Throughout the Day

Total daily intake matters most, but distribution has a measurable effect on muscle protein synthesis. Each meal that contains at least 20–40 g of protein triggers a near-maximal anabolic response. Spreading intake across three to four meals is more effective than eating the same total amount in one or two sittings. Eating protein within a few hours of training is beneficial but the window is wider than once thought — total daily intake remains the dominant variable. Use the Daily Protein Calculator to do this instantly.

Frequently Asked Questions

Is high protein intake safe for healthy kidneys?

For people with healthy kidneys, intakes up to 2.2 g per kg of bodyweight have not been shown to cause harm in clinical studies. The concern applies primarily to people with pre-existing kidney disease, who should consult a physician before increasing protein significantly.

Does protein source matter?

Animal proteins (meat, eggs, dairy, fish) are complete proteins with all essential amino acids and high leucine content, which is the primary trigger for muscle protein synthesis. Plant proteins can achieve the same effect when sources are varied or leucine is supplemented, but the required total intake is typically higher.

Can I eat too much protein?

Excess protein above roughly 2.4 g per kg provides no additional muscle-building benefit and is simply metabolised for energy. It is not harmful, but it crowds out calories that could come from carbohydrates and fats needed for training performance and hormonal function.