If you want to start working out, or if you have already been training and want to bulk up more, the best protein powder could carry you the extra mile to the body you want. I remember when I started working out that I was overwhelmed by the literally thousands of protein powder options, each boasting its benefits. I wish I had a protein powder guide like this one, which showed me how to get the most protein for the best price.
From whey to plant-based options, I have included a wide range of protein supplements, considering factors such as protein type, concentration, additional ingredients and more.
I hope it helps you take the first step to the body of your dreams.
What protein powder is most effective?
Choosing the right protein powder depends on your fitness goals, dietary preferences, specific health considerations and other factors. Here are the 7 things you should consider when looking for the best protein powder for you.
1. Type of protein
- Whey Protein: Derived from milk, whey protein is a fast-digesting protein that is rich in essential amino acids. It’s an excellent choice for post-workout supplementation.
- Casein Protein: Also derived from milk, casein is a slow-digesting protein. It provides a steady release of amino acids and is often taken before bedtime.
- Pea Protein: Suitable for vegetarians and vegans, pea protein is hypoallergenic and easily digestible. It’s a good source of branched-chain amino acids (BCAAs).
- Soy Protein: Another plant-based option, soy protein is a complete protein, meaning it contains all essential amino acids. It’s suitable for vegetarians and vegans.
2. Protein concentration
Check the protein content per serving. Higher protein concentrations are generally more effective for muscle building and recovery. Look for products with at least 20-25 grams of protein per serving. All the protein powders on this list meet that criteria.
3. Other ingredients
Some protein powders may contain added sugars, artificial sweeteners, preservatives, or fillers. It’s advisable to choose products with minimal additives, especially if you have dietary restrictions or sensitivities.
4. Allergens
Consider any allergies or intolerances you may have. If you are diabetic, lactose intolerant or allergic to dairy, plant-based protein powders are the way to go.
5. Flavour and texture
Protein powders come in various flavours, and the same flavour can taste quite different between brands. Although it is more expensive (in terms of cost per gram) to buy a smaller pack, I recommend it if you are new to protein powders or are switching brands — you don’t want to suffer through 2kg of protein powder you dislike.
Also, consider the texture and how well it mixes with your preferred liquids, hot or cold.
6. Intended use
Different protein powders may be more suitable for specific purposes. For example, whey protein is often recommended for post-workout recovery, while casein may be a better choice for sustained protein release.
7. Nutritional profile
Look beyond just protein content. Check the overall nutritional profile, including the vitamins and minerals, and the ratio of macronutrients (carbohydrates and fats). Check the ingredients list for fillers and flavour enhancers that introduce more chemicals to your body.
Always talk with your healthcare professional or a registered dietitian, especially if you have any specific health concerns or dietary restrictions before you decide on any protein powder or supplement. They can provide personalised recommendations based on your individual needs.
How much protein do I need?
The recommended daily protein intake for the average Singaporean adult aged 18-49 is approximately 0.8g/kg body weight. This means that those aged 18-49 should consume approximately 50g to 60g of protein a day.
Older adults aged 50 and above have a higher daily recommended protein intake at 1.2g/kg bodyweight.
If you work out and want to build muscle, you should consume 1.2g to 2.0g of protein per kg of bodyweight. Please note that your protein should come from a combination of protein powder and a balanced nutritious diet. Researchers recommend getting a maximum of 25-50g of protein per day from protein powder. All the powders on this list fall in that range.
Best protein powder
Even the best protein powder brands can have vastly different approaches to formulating their products. For example, some brands come in huge 2kg jars while others come in 500g packs. However, the latter could be more concentrated, meaning that it contain the same amount or possibly even more protein per serving.
To make it easier for you to choose, I have included the number of servings in each container of protein powder on our list. The 15 protein powders are listed from lowest cost per serving to the highest*. Use that to determine how much protein you get for every dollar you spend.
I have also included the cost per gram of protein. This is useful to understand which brand gives you the most protein per dollar. The ideal would be the protein powder with the best balance between low cost per serving and low cost per gram of protein, i.e., the one with the most protein for the lowest price.
*Please note that pricing is accurate at time of publication. Prices may change and special offers may affect the value of each product.
| Name | Best for | Cost per serving | Key highlight |
|---|---|---|---|
| Nutricost, Whey Protein Concentrate, Unflavoured (5 lb / 2.268 kg) | Budget-friendly daily use | S$1.09 | Creamier whey with strong value per serving |
| Nutricost, Whey Protein Isolate, Unflavoured (5 lb / 2.27 kg) | Lean muscle and cutting | S$1.35 | High protein, near-zero fat and carbs |
| EVLution Nutrition, 100% Whey Protein, Double Rich Chocolate (5 lb / 2.268 kg) | Post-workout recovery support | S$1.59 | Added BCAAs and glutamine blend |
| NOW Foods, Sports, Pea Protein, Pure Unflavoured (2 lbs / 907 g) | Vegan high-protein diets | S$1.74 | Hypoallergenic, versatile plant protein |
| Optimum Nutrition, Gold Standard 100% Whey, Double Rich Chocolate (5.05 lb / 2.29 kg) | Taste and mixability | S$1.93 | Smooth texture with consistent flavour |
| California Gold Nutrition, Sport, Whey Protein Isolate, Unflavoured (1 lb / 454 g) | Clean, additive-free shakes | S$2.69 | No sweeteners or fillers |
| California Gold Nutrition, Sport, Whey Protein Isolate, Very Vanilla (2 lb / 907 g) | Low-calorie flavoured option | S$3.00 | Sweet taste without extra macros |
| Orgain, Organic Protein Powder, Creamy Chocolate Fudge (2.03 lb / 920 g) | Dairy-free smooth texture | S$2.91 | Creamy plant blend without grittiness |
| Orgain, Organic Protein Powder, Plant Based, Vanilla Bean (2.03 lb / 920 g) | Smoothies and green blends | S$2.91 | Masks vegetable taste well |
| Garden of Life, RAW Organic Protein, Unflavoured (560 g) | Whole-food plant nutrition | S$2.92 | Includes probiotics and enzymes |
| Biochem, 100% Whey Isolate Protein Powder, Vanilla (1.8 lbs / 816 g) | Keto-friendly diets | S$2.92 | Zero sugar, light consistency |
| NOW Foods, Sports, Whey Protein Isolate, Unflavoured (1.2 lbs / 544 g) | Minimalist formulations | S$3.01 | No artificial additives |
| Thorne, Whey Protein Isolate, Chocolate (1.99 lb / 906 g) | Competitive athletes | S$3.43 | NSF Certified for Sport |
| Isopure, Zero Carb Protein Powder, Unflavoured (1 lb / 454 g) | Strict low-carb diets | S$3.53 | Zero carbs, clear-style drink |
| Dymatize, ISO100 Hydrolyzed Protein, Gourmet Chocolate (5 lb / 2.3 kg) | Fast absorption recovery | S$4.00 | Hydrolysed for rapid digestion |
1. Nutricost, Whey Protein Concentrate, Unflavoured (5 lb / 2.268 kg)
The most cost-effective way to supplement protein daily.
Providing a solid 25g of protein per serving, this concentrate is the budget-friendly sibling to the isolate. It has a slightly higher fat content which lends it a creamier, more natural milk flavour, making it a great “all-purpose” powder for those watching their wallet.
- Protein type: Whey Protein Concentrate
- Servings per container: 71
- Protein per serving: 25g
- Saturated fat per serving: 1.5g
- Cost per serving: S$1.18
- Cost per gram of protein (S$/g): S$0.05
Buy now at iHerb
2. Nutricost, Whey Protein Isolate, Unflavoured (5 lb / 2.27 kg)
Best for strict macro-tracking and lean muscle gain.
Nutricost focuses on a high protein-to-calorie ratio, offering 30g of protein per scoop. With virtually no fat or carbohydrates, it is the ultimate tool for those in a “cutting” phase who need to hit high protein targets without any extra caloric baggage.
- Protein type: Whey Protein Isolate
- Servings per container: 71
- Protein per serving: 30g
- Saturated fat per serving: 0g
- Cost per serving: S$1.56
- Cost per gram of protein (S$/g): S$0.05
Buy now at iHerb
3. EVLution Nutrition, 100% Whey Protein (5 lb / 2.268 kg)
The performance blend with built-in recovery support.
This formula uses a multi-stage delivery of whey protein concentrate and isolate to fuel muscles over time. Each serving includes 5g of BCAAs and 4g of glutamine, targeting post-workout soreness and muscle repair for the dedicated gym-goer.
- Protein type: Whey Protein Blend
- Servings per container: 68
- Protein per serving: 25g
- Saturated fat per serving: 1g
- Cost per serving: S$1.93
- Cost per gram of protein (S$/g): S$0.06
Buy now at iHerb
4. NOW Foods, Sports, Pea Protein, Pure Unflavoured (2 lbs / 907 g)
Best value for high-protein vegan dieting.
This is a pure, non-GMO vegetable protein isolate that delivers 24g of protein per serving. It is highly digestible and free from common allergens like soy and dairy. Because it is unflavoured and contains no fat or sugar, it’s a versatile “blank canvas” for cooking or bold fruit smoothies.
- Protein type: Pea Protein
- Servings per container: 27
- Protein per serving: 24g
- Saturated fat per serving: 0g
- Cost per serving: S$1.74
- Cost per gram of protein (S$/g): S$0.07
Buy now at iHerb
5. Optimum Nutrition, Gold Standard 100% Whey (5.05 lb / 2.29 kg)
The industry benchmark for taste and mixability.
A perennial bestseller for a reason, this blend of isolate and concentrate offers 24g of protein and 5.5g of naturally occurring BCAAs. It’s widely praised for its smooth texture and consistent flavour profile, making it a reliable daily driver for muscle maintenance.
- Protein type: Whey Protein Blend (Isolate, Concentrate, Peptides)
- Servings per container: 74
- Protein per serving: 24g
- Saturated fat per serving: 1g
- Cost per serving: S$1.93
- Cost per gram of protein (S$/g): S$0.08
Buy now at iHerb
6. California Gold Nutrition, Sport, Whey Protein Isolate, Unflavoured (1 lb / 454 g)
Best for those seeking a clean, filler-free additive.
With no added sugars, sweeteners, or thickeners, this 100% whey isolate is as “naked” as it gets. It packs a hefty 27g of protein per serving with 0g of saturated fat, making it an ideal choice for those with sensitivities or anyone who prefers a natural, unflavoured base for their custom shakes.
- Protein type: Whey Protein Isolate
- Servings per container: 15
- Protein per serving: 27g
- Saturated fat per serving: 0g
- Cost per serving: S$2.69
- Cost per gram of protein (S$/g): S$0.10
Buy now at iHerb
7. California Gold Nutrition, Sport, Whey Protein Isolate, Very Vanilla (2 lb / 907 g)
The low-calorie choice for a post-workout sweet fix.
Taking the same 27g high-protein base as the unflavoured version, this variant adds a natural vanilla flavour profile without piling on extra calories. It remains low-carb and low-fat, perfect for those who want a ready-to-drink shake that tastes like a treat but keeps macros in check. Contains Organic Cane Sugar and Sunflower Lecithin.
- Protein type: Whey Protein Isolate
- Servings per container: 24
- Protein per serving: 27g
- Saturated fat per serving: 0g
- Cost per serving: S$3
- Cost per gram of protein (S$/g): S$0.07
Buy now at iHerb
8. Orgain, Organic Protein Powder, Creamy Chocolate Fudge (2.03 lb / 920 g)
The smoothest plant-based option for sensitive stomachs.
Combining organic pea, brown rice, and chia seeds, Orgain provides 21g of protein with zero added sugar. It is specifically formulated to avoid the “gritty” texture often found in vegan powders, making it a favourite for those avoiding dairy without sacrificing creamy flavour.
- Protein type: Plant-Based (Pea, Rice, Chia)
- Servings per container: 20
- Protein per serving: 21g
- Saturated fat per serving: 1g
- Cost per serving: S$2.91
- Cost per gram of protein (S$/g): S$0.14
Buy now at iHerb
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9. Orgain, Organic Protein Powder, Plant Based, Vanilla Bean (2.03 lb / 920 g)
The perfect base for nutrient-dense green smoothies.
Similar to its chocolate counterpart, this vanilla bean version offers 21g of plant protein and 5g of fibre. Its subtle, sweet vanilla notes are designed to mask the taste of kale or spinach, making it the ideal protein booster for your morning vegetable juice or smoothie bowl.
- Protein type: Plant-Based
- Servings per container: 20
- Protein per serving: 21g
- Saturated fat per serving: 1g
- Cost per serving: S$2.91
- Cost per gram of protein (S$/g): S$0.14
Buy now at iHerb
10. Garden of Life, RAW Organic Protein, Unflavoured (560 g)
The cleanest “whole-food” plant protein on the list.
This isn’t just protein; it’s a nutrient-dense blend of 22 sprouted grains and seeds. Certified Organic and Non-GMO, it includes live probiotics and enzymes to aid digestion. It’s the “planet-friendly” choice for those who want their supplement as close to nature as possible.
- Protein type: Plant-Based (Pea, Sprout)
- Servings per container: 20
- Protein per serving: 22g
- Saturated fat per serving: 0g
- Cost per serving: S$2.92
- Cost per gram of protein (S$/g): S$0.13
Buy now at iHerb
11. Biochem, 100% Whey Isolate Protein Powder, Vanilla (1.8 lbs / 816 g)
The keto-friendly isolate with zero sugar.
This isolate is designed for rapid absorption and minimal digestive stress. It provides 20g of protein with zero sugar and is famously gluten-free. Its thin, light consistency makes it a great “refreshing” protein drink rather than a heavy, filling meal replacement.
- Protein type: Whey Protein Isolate
- Servings per container: 28
- Protein per serving: 20g
- Saturated fat per serving: 0g
- Cost per serving: S$2.92
- Cost per gram of protein (S$/g): S$0.15
Buy now at iHerb
12. NOW Foods, Sports, Whey Protein Isolate, Unflavoured (1.2 lbs / 544 g)
The minimalist’s choice for pure protein.
With no artificial sweeteners, flavours, or colours, this isolate is as straightforward as it gets. It contains 25g of protein and is micro-filtered to remove impurities. It’s the best option for those who want to avoid all additives and control every ingredient in their shake.
- Protein type: Whey Protein Isolate
- Servings per container: 19
- Protein per serving: 25g
- Saturated fat per serving: 0g
- Cost per serving: S$3.01
- Cost per gram of protein (S$/g): S$0.12
Buy now at iHerb
13. Thorne, Whey Protein Isolate, Chocolate (1.99 lb / 906 g)
The gold standard for professional athletes.
Thorne is the brand trusted by elite sports organisations due to its NSF Certified for Sport status. This isolate is exceptionally clean and tested for over 200 banned substances, providing a safe and effective 21g of protein for those who take their competition seriously.
- Protein type: Whey Protein Isolate
- Servings per container: 25
- Protein per serving: 21g
- Saturated fat per serving: 0.5g
- Cost per serving: S$2.86
- Cost per gram of protein (S$/g): S$0.16
Buy now at iHerb
14. Isopure, Zero Carb Protein Powder, Unflavoured (1 lb / 454 g)
The ultimate zero-carb solution for weight loss.
With literally 0g of carbohydrates and 25g of protein, Isopure is designed for those on a strict ketogenic or low-carb diet. It is a “clear” style protein that mixes into a water-like consistency, making it a light alternative to traditional milky shakes.
- Protein type: Whey Protein Isolate
- Servings per container: 15
- Protein per serving: 25g
- Saturated fat per serving: 0g
- Cost per serving: S$3.31
- Cost per gram of protein (S$/g): S$0.14
Buy now at iHerb
15. Dymatize, ISO100 Hydrolyzed Protein, Gourmet Chocolate (5 lb / 2.3 kg)
Best for rapid absorption and fast recovery.
Because it is “hydrolyzed,” the protein is partially broken down for even faster digestion. It’s a top-tier choice for the immediate post-workout window. Despite the advanced processing, it maintains a gourmet flavour profile with zero grams of fat and less than 1g of sugar.
- Protein type: Hydrolyzed Whey Protein Isolate
- Servings per container: 71
- Protein per serving: 25g
- Saturated fat per serving: 0.5g
- Cost per serving: S$4.00
- Cost per gram of protein (S$/g): S$0.16
Buy now at iHerb
How to choose the right protein powder for your goals
Start with your primary use case. For everyday supplementation on a budget, Nutricost Whey Protein Concentrate offers a straightforward, cost-efficient option. If you are cutting or tracking macros closely, Nutricost Whey Protein Isolate provides higher protein with minimal fats and carbohydrates. For post-workout recovery, EVLution Nutrition 100% Whey Protein adds BCAAs and glutamine to support muscle repair, while Dymatize ISO100 suits those prioritising fast absorption.
Dietary needs also matter. NOW Foods Pea Protein works well for vegan or dairy-free diets, while Orgain Organic Protein Powder is easier on digestion with a smoother texture. If ingredient simplicity is key, California Gold Nutrition Whey Protein Isolate and NOW Foods Whey Isolate offer cleaner formulations. The right choice depends on how you plan to use it day to day.
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