Protein 101: How Much You Actually Need and Easy Ways to Hit Your Target

Protein is the most important macronutrient for almost every body composition goal. Whether you want to lose fat, build muscle, or just feel more satisfied after meals, getting enough protein is the single highest-impact change most people can make to their diet.

The problem is that most people do not eat enough of it. And the advice out there ranges from "you only need 50 grams a day" to "eat your body weight in grams every meal." Neither is helpful.

Here is what the research actually says, and practical ways to hit your target without turning every meal into a chicken breast marathon.

Why Protein Matters More Than You Think

Protein does more than build muscle. It plays a role in almost every function in your body:

Satiety. Protein is the most filling macronutrient. Studies consistently show that higher protein meals reduce hunger and total calorie intake throughout the day. If you are always hungry between meals, insufficient protein is likely part of the problem.
Muscle preservation. When you are in a calorie deficit (eating less to lose fat), your body does not just burn fat. It also breaks down muscle for energy. Adequate protein intake dramatically reduces muscle loss during fat loss phases.
Thermic effect. Your body uses more energy digesting protein than carbs or fat. About 20-30% of protein calories are burned during digestion, compared to 5-10% for carbs and 0-3% for fat. This means 100 calories of chicken effectively costs your body 25 calories to process.
Recovery. Whether you exercise or not, protein provides the building blocks for tissue repair, immune function, and enzyme production.

How Much Do You Need?

The Australian Recommended Dietary Intake (RDI) is 0.84g/kg for men and 0.75g/kg for women. For an 80 kg man, that is 67g per day.

This is the minimum to prevent deficiency. It is not the optimal amount for body composition, performance, or satiety.

Current research supports significantly higher intakes:

| Goal | Protein target (g/kg body weight) | Example (75 kg person) | |------|:-:|:-:| | General health (sedentary) | 1.2-1.4 | 90-105g | | Fat loss (preserving muscle) | 1.6-2.2 | 120-165g | | Muscle building | 1.6-2.2 | 120-165g | | Endurance athletes | 1.4-1.8 | 105-135g | | Older adults (50+) | 1.2-1.6 | 90-120g |

A reasonable target for most active people is 1.6-2.0g per kilogram of body weight. If you are currently eating 60-80g per day, even getting to 120g will make a noticeable difference to your hunger, body composition, and energy.

For more on setting your overall macro targets, see our complete macro counting guide.

The Best Whole Food Protein Sources

You do not need supplements to hit your protein target. Whole foods can get you there, and they come with additional nutrients that shakes do not provide.

High-Protein Staples (25g+ per serve)

Chicken breast (150g cooked): ~46g protein. The classic for a reason. Versatile, affordable, and almost pure protein.
Lean beef or kangaroo (150g cooked): ~40g protein. Rich in iron and B12 alongside the protein.
Fish (150g cooked): ~35-40g protein. Salmon also provides omega-3 fatty acids.
Greek yoghurt (200g): ~20g protein. Choose plain varieties and add your own fruit to control sugar.
Cottage cheese (200g): ~24g protein. High protein, low calorie. Works as a snack or added to meals.
Eggs (3 large): ~18g protein. Also provides choline, vitamin D, and healthy fats.

Moderate Protein Sources (10-20g per serve)

Legumes (1 cup cooked lentils): ~18g protein. Also an excellent source of fibre.
Tofu (150g): ~18g protein. Firm tofu works well in stir-fries and curries.
Milk (300ml): ~10g protein. An easy protein boost in smoothies or with meals.
Cheese (40g): ~10g protein. Calorie-dense, so portion awareness helps.
Nuts and seeds (30g): ~5-7g protein. Better as a fat source that happens to contain some protein.

Quick Protein Additions

These are easy ways to add 10-20g of protein to meals you already eat:

Add Greek yoghurt to your breakfast instead of regular yoghurt (+12g)
Stir a scoop of collagen into your morning coffee (+10g)
Top salads with a tin of tuna or salmon (+25g)
Swap regular bread for high-protein bread (+4g per slice)
Add cottage cheese as a side to any meal (+12g per 100g)
Include edamame as a snack or salad topper (+11g per 100g)

How to Spread Protein Across the Day

Research suggests that distributing protein across 3-4 meals produces better muscle protein synthesis than eating most of it in one sitting. This does not mean you need to eat exactly 30g every three hours. It means that a protein-heavy dinner and protein-light breakfast is not ideal.

A Practical Day at 140g Protein

Breakfast: Greek yoghurt (200g) with berries and granola, plus 2 boiled eggs

~38g protein

Lunch: Chicken and vegetable stir-fry (150g chicken) with rice

~46g protein

Afternoon snack: Apple with cottage cheese (150g)

~18g protein

Dinner: Salmon fillet (150g) with sweet potato and greens

~38g protein

Total: ~140g protein

Notice that each meal contributes meaningfully. No meal is carrying the entire day's requirement.

Common Protein Mistakes

Mistake 1: Backloading All Protein to Dinner

If your breakfast is toast and coffee (5g protein) and your lunch is a sandwich (12g protein), you need 120g+ from dinner alone. That is a lot of chicken. Redistribute by adding a protein source to every meal, including breakfast.

Mistake 2: Thinking Protein Bars Are the Answer

Most protein bars are glorified candy bars with some whey powder. Check the label: if the bar has 20g protein but also 25g sugar and 15g fat, it is not a great protein source. It is a snack that happens to contain some protein. Whole food sources are almost always better.

Mistake 3: Ignoring Protein on Rest Days

Your muscles recover and grow on rest days. Protein needs do not decrease because you skipped the gym. Keep your intake consistent regardless of whether you trained.

Mistake 4: Confusing "Contains Protein" With "High Protein"

Peanut butter "contains protein" (7g per tablespoon), but it is primarily a fat source (16g fat per tablespoon). Almonds "contain protein," but you would need to eat 600 calories worth to get 20g. Look at the protein-to-calorie ratio, not just the protein number.

Protein and Fat Loss

Protein becomes even more important when you are eating in a calorie deficit. Here is why:

It protects your muscle. Without adequate protein during fat loss, up to 25% of the weight you lose can be muscle. With adequate protein (1.6g/kg+) and resistance training, you can reduce that to nearly zero.
It keeps you full. The hardest part of a calorie deficit is hunger. Protein is your best weapon against it. A 400-calorie meal of chicken, vegetables, and rice will keep you satisfied for hours. A 400-calorie pastry will leave you hungry in 45 minutes.
It burns more calories during digestion. The thermic effect of protein means you effectively absorb fewer net calories from protein-rich foods compared to the same calorie amount from carbs or fat.

For a deeper understanding of why eating enough matters during fat loss, read our guide on why under-eating sabotages your goals.

Tracking Made Simple

The easiest way to know if you are hitting your protein target is to track your meals. But traditional tracking is tedious: searching databases, weighing ingredients, manually entering every food item.

Healthly simplifies this by using AI to analyse photos of your meals and break down the macros instantly. You can see at a glance whether your protein intake is on track for the day and adjust your remaining meals accordingly.

The goal is not to track forever. It is to track long enough to build an intuitive sense of what adequate protein looks like on your plate.

What to Do Next

Calculate your target. Multiply your body weight in kilograms by 1.6-2.0, depending on your goals.
Audit your current intake. Track a few normal days to see where you actually land. Most people are surprised at how low it is.
Add one protein source to each meal you currently eat. Start there before overhauling your entire diet.
Be patient. Increasing protein intake from 70g to 140g does not happen overnight. Add 10-20g per week until you reach your target.

Protein is not complicated. Eat more of it, spread it across your meals, and prioritise whole food sources. Your body, your energy, and your results will thank you.