The official minimum (RDA) for adults is 0.8 g of protein per kg body weight — but this is the amount needed to prevent deficiency, not the amount that optimises health, body composition, or performance. Current research suggests substantially higher intakes for most active people:
Goal / Situation
Protein target
For 70 kg person
Sedentary adult (minimum)
0.8 g/kg
56 g/day
General health / maintenance
1.0–1.2 g/kg
70–84 g/day
Weight loss (muscle preservation)
1.2–1.6 g/kg
84–112 g/day
Muscle building
1.6–2.2 g/kg
112–154 g/day
Athletic performance
1.6–2.4 g/kg
112–168 g/day
Adults 65+ (sarcopenia prevention)
1.2–1.6 g/kg
84–112 g/day
Why Higher Protein Helps With Weight Loss
Protein is the most powerful macronutrient for weight management, for three reasons:
Highest satiety: Protein reduces hunger hormones (ghrelin) and increases fullness hormones (PYY, GLP-1) more than carbohydrates or fat, leading to reduced calorie intake without deliberate restriction
Highest thermic effect: 20–30% of protein calories are used in digestion and metabolism itself — compared to 5–10% for carbohydrates and 0–3% for fat. A 150 kcal serving of chicken effectively provides only ~120 kcal net
Muscle preservation: During a calorie deficit, high protein intake (1.2–1.6 g/kg) preserves lean muscle mass — which maintains metabolic rate and body composition
💡 A meta-analysis of 87 studies found that higher protein diets consistently produce more weight loss and muscle preservation than standard protein diets, even at the same calorie intake (Wycherley et al., 2012).
Malaysian readers can hit these numbers affordably with local staples like ikan bilis, tempeh, tofu, dhal, and ikan kembung — no need for imported or specialty products.
Protein Timing: Does It Matter?
Total daily protein intake matters more than timing, but distributing protein evenly across meals does enhance muscle protein synthesis. Research supports:
Spread across 3–4 meals: Aiming for 25–40g of protein per meal maximises muscle protein synthesis at each meal. Eating 150g in one sitting is less effective than 40g per meal × 4 meals
Post-workout: Consuming 20–40g of protein within 1–2 hours of resistance training slightly enhances muscle repair
Pre-sleep casein: Slow-digesting casein protein (cottage cheese, Greek yoghurt) before bed sustains overnight muscle protein synthesis
Frequently Asked Questions
Protein needs depend on your goal and activity level. The minimum for sedentary adults is 0.8 g per kg body weight. For weight loss, 1.2–1.6 g/kg helps preserve muscle. For muscle building, 1.6–2.2 g/kg is optimal. Older adults need about 1.2–1.6 g/kg to counteract age-related muscle loss.
For healthy adults, protein intakes up to 2.5 g/kg body weight are generally safe. Very high intakes above 3.5 g/kg may cause digestive discomfort in some people. People with kidney disease should consult a doctor before increasing protein intake, as impaired kidneys may have difficulty processing high protein loads.
Yes. Protein has the highest thermic effect of all macronutrients (20–30% of protein calories are burned during digestion). It also promotes satiety more than carbohydrates or fat. During a calorie deficit, higher protein intake helps preserve lean muscle mass, which keeps metabolic rate higher.
The best high-protein foods include chicken breast (31g/100g), canned tuna (26g/100g), eggs (13g/100g), Greek yoghurt (10g/100g), cottage cheese (12g/100g), lentils (9g/100g), and tofu (8g/100g). For plant-based diets, combining legumes with grains provides all essential amino acids.
Plant proteins are slightly lower in bioavailability and most are incomplete (missing one or more essential amino acids). However, a varied plant-based diet combining different protein sources easily meets protein needs. Research shows plant-protein diets can achieve the same muscle building and weight loss results as animal-protein diets when total intake is matched.
📚 References
Morton RW et al. (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength. Br J Sports Med. doi:10.1136/bjsports-2017-097608
Wycherley TP et al. (2012). Effects of energy-restricted high-protein, low-fat diet relative to a conventional high-carbohydrate, low-fat diet on weight loss. Am J Clin Nutr. doi:10.3945/ajcn.112.044321
Stokes T et al. (2018). Recent perspectives regarding the role of dietary protein for the promotion of muscle hypertrophy with resistance exercise training. Nutrients. doi:10.3390/nu10020180
Not a substitute for professional medical or dietary advice. Last updated June 2026.