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Protein powder: what to know before you buy

Protein powder is concentrated dairy or plant protein: a 30 g scoop typically gives 20-27 g of protein. It is useful when food alone doesn’t get you to your daily protein; it is neither magic nor necessary. Its type, its label and its price per 30 g of protein let you compare any product.

Types of protein powder: concentrate, isolate, hydrolysate, plant

Typical values; the exact number is on the label.
TypeProtein per 100 gLactoseBest for
Whey concentrate (WPC)70-80 gsomeMost people, best value
Whey isolate (WPI)85-90 gvery littleLactose intolerance, strict diets
Hydrolysate (WPH)80-90 gvery littleSensitive digestion; pricier, slightly bitter
Casein75-85 gsomeSlow digesting, thicker and creamier
Plant (pea, rice, soy)65-80 gnoneVegans, dairy protein allergy

Whey protein digests quickly and is rich in leucine, the amino acid that switches on muscle protein synthesis. Single plant proteins are each low in one essential amino acid, which is why a pea and rice blend beats either alone. In our recipes, protein powder means vanilla or chocolate whey with about 78 g of protein per 100 g.

How much protein powder, and when?

Start from your daily protein target (protein calculator) and see how much food already covers. Powder only fills the gap: for most people one or two scoops a day (25-60 g of protein). According to the ISSN, the daily total matters most; the few hours after training are a good time, but there is no need to rush.

How to read a protein powder label

Cost per 30 g of protein: how to compare

The formula: price / (pack size in g × protein per 100 g / 100) × 30. A made-up example: a 1,000 g bag for 30.00 with 78 g of protein per 100 g holds 780 g of protein, so 30 g of protein costs 1.15. The same formula works for food: enter the price per kilo of chicken breast or eggs and their protein content.

1.15per 30 g of protein

The pack holds 780 g of protein in total, 0.04 per gram.

Protein powder or food?

Food gives you more: fibre, vitamins and better fullness. Powder is convenience: ready in two minutes, no cooking, easy to fit into a calorie deficit. In our recipes it mostly goes into breakfasts, shakes and desserts that would otherwise be low in protein:

If you would rather skip the powder, these recipes get over 40 g of protein from food:

Protein powder for women: myths

Creatine in protein powder?

Creatine is not protein but a supplement in its own right; per the ISSN, 3-5 g a day is the most studied, safe dose for strength and muscle gain. If a protein powder contains creatine, it should not count towards the protein figure, and you shouldn’t pay protein prices for it. Creatine has its own creatine guide, and the other supplements (BCAA, pre-workout, protein bars) are on the supplements page.

Brands you will see in shops

In Hungary and across Europe you will find brands such as Scitec Nutrition, BioTech USA, Pure Gold, GymBeam and MyProtein. We don’t rank them: with the method above (protein per 100 g, ingredient list, price per 30 g of protein) you can compare any product yourself. Brand names are trademarks of their owners; The Fit Chef is not affiliated with any of them.

Frequently asked questions

What is the best protein powder?

There is no single best. For most people a good whey concentrate is enough; an isolate if you are lactose intolerant, a pea and rice blend if you are vegan. Compare protein per 100 g, the ingredient list and the price per 30 g of protein.

How much protein powder can I have a day?

Usually one or two scoops (25-60 g of protein) is plenty; most of your protein should come from food. The protein calculator gives your total target.

When should I drink protein powder?

Whenever suits you: breakfast, after training or as a snack. The daily total matters most; any time within a few hours of training is fine.

Is protein powder good for women trying to lose weight?

Yes, if it helps you reach your daily protein. It won’t make you bulky or gain weight on its own, and it keeps you fuller and helps keep muscle while dieting.

What is the difference between whey concentrate and isolate?

Isolate is filtered further, so it has more protein (85-90 g per 100 g) and less lactose and fat. Concentrate (70-80 g per 100 g) is cheaper and fine for most goals.

Can you cook and bake with protein powder?

Yes: in pancakes, oats, mug cakes or nice cream. Try the protein pancakes or the chocolate mug cake.

Sources

Get The Fit Chef (iOS/Android)

Get your protein from food. Powder tops it up.

The Fit Chef plans your week to your protein target, and you can filter recipes with or without protein powder.

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