The best low-sugar protein powders, ranked

Of the 238 low-sugar protein powders we have checked against their labels, the highest-scoring are BulkSupplements Casein Protein Powder (100/100), Applied Nutrition Clear Whey Protein (100/100) and AGN Roots Grass-Fed Whey (100/100).

Every powder here has under 2 g of sugar per serving, per its nutrition label. We rank by the TBPP Quality Score: protein density, third-party testing, label transparency and sugar, scored against our published standard. Last checked 2026-10-14.

Our picks

Highest score

BulkSupplements

Casein Protein Powder

Casein · 30 g scoop

NSF Certified for SportNo sweeteners

Protein

25g

Sugar

Our score

100/100

$0.64 / servingChecked 2026-10-14

100/100 on our standard.

Best value

Allmax

IsoFlex 100% Whey Protein Isolate

Whey Isolate · 30 g scoop

No third-party testing found

Protein

27g

Sugar

Our score

71/100

$0.33 / servingChecked 2026-10-13

$0.31 per 25 g of protein, the lowest in the top half.

Most protein per scoop

Opportuniteas

Grass Fed Whey Protein Isolate

Whey Isolate · 30 g scoop

No third-party testing foundNo sweeteners

Protein

28g

Sugar

Our score

75/100

$2.53 / servingChecked 2026-10-14

93% protein by weight.

Full ranking

Per serving, from the label. A dash means we couldn't verify it.

Best low-sugar protein powders, ranked by score
#	Powder	Score	Protein	Sugar	Per 25 g protein	Third-party tested
1	BulkSupplements Casein Protein Powder	100	25 g	0 g	$0.64	NSF Certified for Sport
2	Applied Nutrition Clear Whey Protein	100	21.27 g	0.24 g	—	Informed Sport
3	AGN Roots Grass-Fed Whey	100	25 g	0 g	$0.66	Informed Sport, Informed Protein
4	Applied Nutrition ISO-XP Whey Protein Isolate	100	22.4 g	0.2 g	—	Informed Sport
5	RAW Nutrition Isolate Protein (Grass-Fed Whey Isolate)	100	25 g	0 g	$3.00	Informed Sport
6	BulkSupplements Whey Protein Isolate 90% Powder	100	25 g	0 g	$0.70	NSF Certified for Sport
7	Klean Athlete Klean Isolate	99	20 g	1 g	—	NSF Certified for Sport
8	1st Phorm Phormula-1	95	23 g	0 g	$2.54	NSF Certified for Sport, Informed Choice
9	Wild Society Nutrition Clear Whey Isolate Protein with Electrolytes	92	20 g	0 g	$3.12	Informed Sport
10	Ascent Native Whey Protein Powder (formerly Native Fuel Whey)	92	25 g	1 g	$0.93	Informed Sport
11	NOW Foods NOW Sports Pea Protein (Pure Unflavored)	92	24 g	0 g	—	Informed Sport
12	Kaged Whey Protein Isolate	92	25 g	1 g	$2.07	Informed Sport
13	Klean Athlete Klean Casein	91	24 g	1 g	—	NSF Certified for Sport
14	Form Nutrition Performance Protein	91	30 g	0.1 g	—	Informed Sport
15	Transparent Labs 100% Grass-Fed Whey Protein Isolate	90	28 g	1 g	$1.93	Informed Choice, Informed Protein
16	Perfect Sports Diesel New Zealand Whey Isolate	90	27 g	0 g	—	Informed Choice
17	Muscle Feast Grass-Fed Whey Protein Isolate	90	25 g	0 g	$0.99	Labdoor tested
18	Naked Nutrition Naked Casein Micellar Casein Protein Powder	90	26 g	0 g	$0.38	NSF Contents Certified
19	Musashi Whey Protein Isolate (WPI)	90	25.3 g	0.4 g	—	Informed Sport
20	Myprotein Impact Whey Protein Elite	89	21 g	1 g	—	Informed Sport, Informed Protein
21	1st Phorm Phormula-1 Clear	88	22 g	0 g	$3.16	NSF Certified for Sport
22	Sascha Fitness Hydrolyzed Whey Protein Isolate	87	25 g	0 g	$2.17	NSF Certified for Sport
23	Myprotein Clear Whey Isolate	86	20 g	0 g	$2.25	Informed Choice
24	Myprotein Impact Whey Isolate	86	25 g	0 g	—	Informed Choice, Informed Protein
25	Believe Supplements Isolate Protein	86	27 g	0 g	—	Informed Protein
26	Ascent Micellar Casein	84	25 g	1 g	$1.80	Informed Sport
27	Vega Protein + Recovery (formerly Sport Premium Protein)	84	30 g	1 g	$2.85	NSF Certified for Sport
28	Just Ingredients Protein Powder	84	22 g	1 g	$2.46	NSF Certified for Sport
29	Faction Labs 100% Whey Protein	82	25.23 g	1.3 g	—	Informed Sport
30	Musashi Plant Protein Powder	82	22.8 g	0.2 g	—	Informed Sport
31	GNC Pro Performance Pro Performance 100% Casein	82	25 g	0 g	$2.40	Informed Choice
32	Ora Organic So Lean & So Clean	82	23 g	0 g	$3.26	Informed Sport
33	Legion Athletics Casein+ Micellar Casein Protein	81	21 g	1 g	$3.33	Labdoor tested
34	GNC AMP AMP Plant Isolate Protein	78	25 g	0 g	$1.79	Informed Choice
35	GNC AMP AMP Sustained Protein Blend	78	25 g	1 g	$1.92	Informed Choice, Informed Protein
36	Optimum Nutrition Gold Standard 100% Whey	78	24 g	1 g	$0.37	Informed Choice
37	Isopure Low Carb 100% Whey Protein Isolate	78	25 g	0 g	$1.00	Informed Choice
38	Rule 1 R1 Protein Whey Isolate	78	25 g	0 g	—	Informed Choice
39	Rival Nutrition Rival Whey	78	24 g	1 g	$2.23	Informed Choice
40	It's Just! 100% Micellar Casein	75	28 g	1 g	$1.18	No
41	NutraBio 100% Whey Protein Isolate	75	25 g	0 g	$2.50	No
42	Basic Supplements Beef Iso (Hydrolyzed Clear Beef Isolate)	75	27 g	0 g	—	No
43	Paleo Pro Beef Protein Isolate	75	23 g	0 g	$3.62	No
44	BulkSupplements Beef Protein Isolate Powder	75	24 g	0 g	$0.66	No
45	Nuzest Clean Lean Protein	75	20 g	0 g	$2.81	No
46	Mt. Capra Clean Whey Protein (Grass-Fed Goat Whey)	75	24 g	1 g	$3.82	No
47	Isopure Clear Protein (formerly Infusions)	75	20 g	1 g	$1.92	No
48	Core Nutritionals Core ISO	75	24 g	1 g	$1.95	No
49	Paleo Pro Egg White Protein Powder	75	20 g	0 g	$4.17	No
50	Opportuniteas Grass Fed Whey Protein Isolate	75	28 g	0 g	$2.26	No
51	Allmax IsoNatural Pure Whey Protein Isolate	75	27 g	1 g	$2.08	No
52	Kaizen Naturals Kaizen Naturals Whey Isolate	75	25 g	0 g	—	No
53	Muscle Feast Micellar Casein Protein	75	27 g	0 g	$1.57	No
54	Syntrax Nectar Medical	75	10 g	0 g	$2.06	No
55	Syntrax Nectar Naturals	75	23 g	0 g	$2.36	No
56	Kaha New Zealand Whey Isolate	75	31 g	0 g	$4.03	No
57	Antler Farms New Zealand Whey Protein Isolate	75	26 g	0 g	$2.47	No
58	ATP Science NOWAY! Collagen Protein	75	20.8 g	0.2 g	—	No
59	Nothing Naughty NZ Whey Protein Isolate	75	20.4 g	0.3 g	—	No
60	AS-IT-IS Nutrition ONE Whey Protein Concentrate (Unflavoured)	75	28 g	1.5 g	—	No
61	Paleo Pro Paleo Protein Powder	75	26 g	0 g	$3.08	No
62	ATP Lab Supreme Beef Protein	75	24 g	0.1 g	$2.83	No
63	Unjury Unflavored High Whey Protein Powder	75	21 g	0 g	$2.38	No
64	AboutTime Whey Protein Isolate	75	25 g	1 g	$2.81	No
65	It's Just! Whey Protein Isolate (Grass-Fed, Unflavored)	75	30 g	1 g	$2.45	No
66	True Protein WPI 90	75	24 g	0.4 g	—	No
67	Dymatize Elite Casein	74	25 g	0 g	—	Informed Choice
68	Optimum Nutrition Gold Standard 100% Plant	74	24 g	0 g	$1.48	Informed Choice
69	Anthony's Goods Pea Protein Powder	74	8 g	0 g	$0.81	No
70	G6 Sports Prolific Isolate	74	25 g	0 g	$2.50	No
71	Garden of Life Raw Organic Protein	74	22 g	0 g	$2.03	NSF Contents Certified
72	Biogen Iso Whey Premium	72	20.9 g	1.9 g	—	Informed Choice
73	Jacked Factory Authentic ISO Whey Protein Isolate	71	25 g	0 g	$1.80	No
74	Bucked Up Buck Feed Original Protein	71	25 g	1 g	—	No
75	Bulk Clear Whey Isolate	71	20 g	0.1 g	—	No
76	Optimum Nutrition Gold Standard 100% Isolate	71	25 g	0 g	$2.35	No
77	Reflex Nutrition Instant Whey Pro	71	24 g	0.7 g	—	No
78	Allmax IsoFlex 100% Whey Protein Isolate	71	27 g	0 g	$0.31	No
79	Allmax Isoflex Chiller Clear Whey Protein Isolate	71	27 g	0 g	$1.65	No
80	APS Nutrition Isomorph 28 Pure Whey Isolate	71	28 g	1.5 g	$0.68	No
81	Syntrax Nectar Lattes	71	23 g	0 g	$2.29	No
82	Syntrax Nectar Native Whey Protein Isolate	71	23 g	0 g	$2.29	No
83	Myprotein Non-Animal Whey (formerly Whey Forward / Whey FWRD)	71	20 g	0 g	$1.69	No
84	Ultimate Nutrition Prostar 100% Whey Protein	71	25 g	1 g	$0.31	No
85	Alpha Nutrition Labs Whey Isolate Protein	71	28 g	1 g	—	No
86	Swolverine Whey Protein Isolate	71	25 g	0 g	$2.52	No
87	Isopure Zero Carb 100% Whey Protein Isolate	71	25 g	0 g	$1.00	No
88	USN Isozero Whey Protein	70	20 g	0 g	—	Informed Choice
89	Nakpro Platinum Whey Protein Isolate	69	28 g	0 g	—	No
90	PhD Nutrition Smart Plant Protein Powder	69	20 g	0 g	—	No
91	GNC AMP AMP Wheybolic Ripped	68	50 g	1 g	$1.35	Informed Choice, Informed Protein
92	MuscleTech Iso Whey Clear	68	22 g	0 g	$2.39	No
93	Prozis 100% Real Whey Protein	67	23.1 g	1.59 g	—	No
94	Balance 100% Whey	67	21 g	1.6 g	—	No
95	InnoSupps Advanced Iso Protein	67	25 g	0 g	$1.80	No
96	BodyTech BodyTech Elite Clear Whey Isolate	67	25 g	0 g	$2.17	No
97	Essential Nutrition Cacao Whey	67	22 g	0.3 g	—	No
98	Nutra Organics Clean Plant Protein	67	23 g	0.2 g	—	No
99	SEEQ Clear Protein (Clear Whey Protein Isolate)	67	22 g	0 g	$2.53	No
100	Sunwarrior Clear Protein Refresher	67	10 g	0 g	$2.91	No
101	Nutricost Clear Whey Protein Isolate	67	20 g	1 g	$2.87	No
102	Orgain Clear Whey Protein Powder	67	22 g	0 g	$2.52	No
103	Pulsin Complete Vegan Protein Blend	67	20.2 g	0.7 g	—	No
104	Designer Wellness Designer Egg Protein Powder	67	24 g	0 g	$1.42	No
105	Birdman Falcon Protein (Organic Plant Protein)	67	23 g	0.5 g	—	No
106	Panda Supps FUEL ISO Premium Protein	67	25 g	0 g	$2.72	No
107	Muscle Feast Grass-Fed Hydrolyzed Whey Protein	67	22 g	1 g	$2.84	No
108	Iconic Grass-Fed Protein Powder	67	20 g	0 g	$3.09	No
109	BioTrust Low Carb Lite	67	20 g	0 g	$2.59	No
110	Nutricost Organic Pea Protein Powder	67	20 g	0 g	$0.39	No
111	Further Food Organic Plant-Based Protein + Mushrooms & Seaweed	67	20 g	0 g	$2.31	No
112	Simply Tera's (formerly Tera's Whey) Organic Whey Protein	67	21 g	1 g	$3.97	No
113	Isopure Plant-Based Protein	67	20 g	0 g	$2.50	No
114	GNC Pro Performance Pro Performance 100% Whey (2.0)	67	25 g	1 g	—	No
115	Garden of Life Sport Certified Grass Fed Whey Protein	67	24 g	0 g	$2.19	NSF Certified for Sport
116	Iron Vegan Sprouted Protein	67	23 g	0 g	—	No
117	Portions Master Vegan Plant Protein	67	18 g	0 g	$2.31	No
118	Canadian Protein Vegan Protein	67	24 g	1 g	—	No
119	AboutTime Vegan Protein (Ve)	67	20 g	0 g	$3.12	No
120	Myprotein Vegan Protein Blend	67	27 g	0 g	$1.09	No
121	Jarrow Formulas Whey Protein	67	18 g	1 g	$1.35	No
122	Bob's Red Mill Whey Protein Concentrate	67	14 g	1 g	—	No
123	Bluebonnet Nutrition Whey Protein Isolate Powder	67	26 g	1.5 g	$2.68	No
124	Equate Whey Protein Powder	67	24 g	0 g	$0.94	No
125	Legion Athletics Whey+ Grass-Fed Whey Protein Isolate	67	22 g	1 g	$2.65	No
126	Bulk Nutrients Earth Protein	66	22.2 g	0.5 g	—	No
127	Wellah Grass-Fed Whey Protein + Pre & Probiotics	66	20 g	1 g	$2.50	No
128	Growth Supplements (TOP) Whey Protein Concentrado	65	24 g	1.7 g	—	No
129	Growth Supplements (TOP) Whey Protein Isolado	65	27 g	0 g	—	No
130	Sunwarrior Classic Plus Protein Powder	65	20 g	0 g	$1.25	No
131	NZProtein NZ Whey Isolate	65	28.2 g	0.1 g	—	No
132	Ritual Essential Protein Daily Shake	64	20 g	0 g	$2.93	Clean Label Project, NSF Contents Certified
133	ESN Isoclear Whey Protein Isolate	64	25 g	0 g	—	No
134	Bulk Pure Whey Isolate	64	24 g	0.4 g	—	No
135	Garden of Life Raw Organic Fit Protein Powder	64	28 g	1 g	$3.71	Informed Choice
136	Bulk Nutrients Whey Protein Isolate (WPI)	64	25.5 g	0.4 g	—	No
137	Avvatar 100% Performance Whey	63	25 g	0 g	—	No
138	Premier Protein 100% Whey Protein Powder	63	30 g	1 g	—	No
139	BPI Sports Best Protein	63	24 g	1 g	$1.28	No
140	Nutricost Casein Protein Powder (Micellar Casein)	63	25 g	1 g	$1.65	No
141	Allmax Casein-FX 100% Micellar Casein Protein	63	25 g	0 g	$1.30	No
142	Ghost Clear Whey	63	25 g	0 g	$1.80	No
143	RAW Nutrition Clear Whey Protein	63	20 g	0 g	$2.40	No
144	Axe & Sledge Farm Fed 100% Whey Protein Isolate	63	25 g	0 g	$2.80	No
145	Optimum Nutrition Gold Standard 100% Casein	63	24 g	1 g	$1.13	No
146	Huge Supplements Huge Whey	63	25 g	0 g	$1.67	No
147	Nutrabolics Hydropure	63	28 g	1 g	—	No
148	Dymatize ISO100 Clear	63	20 g	0 g	—	No
149	Dymatize ISO100 Hydrolyzed	63	25 g	1 g	—	No
150	EHPlabs IsoPept Hydrolyzed Whey Protein Isolate	63	25 g	0 g	$2.20	No
151	RYSE Loaded Protein	63	25 g	1 g	$1.41	No
152	BodyTech Micellar Casein	63	24 g	0 g	$0.90	No
153	More Nutrition More Protein (Milkshake Style)	63	22.8 g	1 g	—	No
154	Colossal Labs Muscle Protein (Monster Muscle Protein)	63	25 g	0 g	$1.03	No
155	Magnum Nutraceuticals Quattro	63	30 g	1 g	—	No
156	Body Fortress Super Advanced Isolate Protein Powder	63	30 g	0 g	$1.70	No
157	JNX Sports The Curse! Ultra Premium Whey	63	25 g	1 g	$1.72	No
158	Myprotein THE Whey	63	25 g	0 g	—	No
159	MRI Performance Ultra Whey Protein	63	25 g	1 g	$1.43	No
160	Syntrax Whey Shake	63	23 g	1 g	$1.92	No
161	NutraBio Clear Whey Protein Isolate	61	20 g	0 g	$2.69	No
162	Nutrabay Gold Tri-Blend Whey Protein	61	25.15 g	1.71 g	—	No
163	Nutrex Research IsoFit	61	25 g	1 g	$2.17	No
164	Bodylab Whey 100	61	21 g	1.6 g	—	No
165	BodyTech Whey Protein Isolate	61	25 g	1 g	$1.05	No
166	Ultimate Nutrition ISO Sensation 93	60	30 g	1 g	$1.19	No
167	Pure Protein All in One Protein Powder	59	25 g	0 g	$2.28	No
168	Designer Wellness Designer Soy Protein Powder	59	20 g	0 g	$1.29	No
169	BioTrust Low Carb Multi Protein Blend (BioTrust Low Carb)	59	24 g	1 g	$2.68	No
170	EHPlabs OxyWhey Lean Whey Protein	59	25 g	1 g	—	No
171	Kaizen Naturals Plant Protein	59	20 g	0 g	—	No
172	JYM Supplement Science Pro JYM Protein Powder	59	24 g	1 g	$1.04	No
173	PEScience Select Vegan Protein	59	20 g	0 g	$0.69	No
174	Free Soul Vegan Protein Blend	59	20 g	0.3 g	—	No
175	Portions Master Vegan Protein Blend	59	16 g	1 g	$2.60	No
176	Natural Factors Whey Factors Grass Fed Whey Protein	59	18 g	1 g	$1.18	No
177	MuscleBlaze Whey Gold 100% Whey Protein Isolate	59	30 g	0.21 g	—	No
178	MuscleMeds Carnivor Beef Protein Isolate	58	23 g	0 g	$1.54	Informed Choice
179	RYSE Clear Protein	57	22 g	0 g	$2.27	No
180	ESN Designer Whey Protein	57	22 g	1.5 g	—	No
181	Beverly International Muscle Provider	57	21 g	1 g	$2.47	No
182	Hi-Tech Pharmaceuticals Precision Protein	57	25 g	1 g	$1.79	No
183	VMI Sports ProtoLyte 100% Premium Whey Isolate Protein	57	22 g	0 g	$3.41	No
184	5% Nutrition Shake Time Real Food Protein	57	24 g	1 g	$2.60	No
185	Olimp Sport Nutrition Whey Protein Complex 100%	56	26 g	1.4 g	—	No
186	Max's 100% Whey Protein	55	24.4 g	0.5 g	—	No
187	Cellucor C4 Whey Protein (C4 Pro Whey)	55	25 g	1 g	$1.29	No
188	Huel Complete Protein	55	20 g	0 g	$1.68	No
189	Core Nutritionals Core PRO	55	25 g	1 g	$1.96	No
190	Gorilla Mind Gorilla Whey	55	25 g	1 g	$2.04	No
191	Bariatric Advantage High Protein Meal Replacement	55	27 g	1 g	$2.45	No
192	Insane Labz Insane Whey	55	25 g	1.2 g	$2.33	No
193	BPI Sports ISO HD	55	25 g	0 g	$0.63	No
194	OZiva Protein + Herbs for Her	55	20 g	1.52 g	—	No
195	Scitec Nutrition 100% Whey Isolate	54	21 g	0.6 g	—	No
196	Horleys ICE WPI	54	26.4 g	0.1 g	—	No
197	Myprotein Impact Whey Protein	54	—	1 g	—	Informed Choice, Informed Protein
198	EAS 100% Platinum Whey	53	25 g	1 g	$0.71	No
199	Animal Animal Whey Isolate Loaded Whey Protein	53	25 g	1 g	$1.85	No
200	ESN Designer Plant Based Protein	53	21 g	0.7 g	—	No
201	PhD Nutrition Diet Whey	53	20 g	0.9 g	—	Informed Protein
202	Panda Supps FUEL Premium Protein	53	30 g	1 g	$1.43	No
203	MuscleSport Lean Whey Iso-Hydro	53	25 g	1 g	$2.54	No
204	Optimum Nutrition Platinum Hydrowhey	53	30 g	1 g	$3.10	No
205	Plix Super Strength Fermented Yeast Protein	53	24.5 g	0 g	—	No
206	Nutrology Tripact Protein	53	25 g	0 g	$1.75	No
207	GNC AMP AMP Pure Isolate	52	25 g	0 g	$1.12	Informed Choice
208	Orgain Grass Fed Whey Protein Powder	51	21 g	1 g	$2.38	No
209	Redcon1 MRE Lite Whole Food Protein	51	26 g	0 g	$0.74	No
210	Nutiva Organic Hemp Protein Powder (Peak Protein)	51	15 g	1 g	$2.33	No
211	up&up Organic Plant-Based Protein Shake Powder	51	21 g	1 g	$1.78	No
212	Vega Protein + Supergreens (formerly Protein & Greens)	51	25 g	1 g	$2.69	No
213	Vega Vega Essential Protein	51	25 g	0 g	$1.35	No
214	Sunwarrior Active Protein (Sport Organic Active Protein)	49	30 g	0 g	$2.08	No
215	Birdman Falcon Performance (Sport Protein + Creatine)	49	31 g	0.4 g	$1.63	No
216	Allmax IsoPlant Plant Protein Isolate	49	20 g	0 g	$1.75	No
217	Jocko Fuel Mölk Protein Powder	49	22 g	1 g	$2.18	No
218	Vivo Life Perform Protein	49	25 g	0.8 g	$2.50	No
219	BioSteel Plant-Based Protein	49	22 g	1 g	—	No
220	Bulk Vegan Protein Powder	49	24 g	0.3 g	—	No
221	Sunwarrior Warrior Blend Protein	49	17 g	0 g	$2.91	No
222	PhD Nutrition Smart Protein Powder	48	18 g	0.6 g	—	No
223	Ghost Clear Gains	47	40 g	1 g	$4.06	No
224	PlantFusion Complete Protein Vegan Protein Powder	47	21 g	0 g	$1.73	No
225	BioTechUSA 100% Pure Whey	46	21 g	1 g	—	No
226	Scitec Nutrition 100% Whey Protein Professional	46	22 g	1.8 g	—	No
227	Designer Wellness Designer Lite Protein Powder	45	10 g	0.5 g	$0.83	No
228	Nutrology Tripact Vegan Protein	45	23 g	0 g	$2.72	No
229	Metabolic Nutrition Protizyme	43	25 g	1 g	$3.08	No
230	PEScience Select Protein	43	24 g	1 g	$0.58	No
231	Orgain Organic Protein + Superfoods Plant-Based Protein Powder	41	21 g	1 g	$2.18	No
232	Equate Plant-Based Protein Powder	41	21 g	0 g	$1.54	No
233	Live Conscious Protein (Organic Plant Protein Powder)	41	15 g	0 g	$3.50	No
234	Garden of Life RAW Organic Meal	41	20 g	0 g	$2.16	No
235	Amazing Grass Super Greens+ Protein	41	10 g	0 g	$7.87	No
236	Hi-Health Udder Bliss Whey Protein Complex	41	24 g	0 g	$2.22	No
237	OWYN Pro Elite High Protein Plant-Based Powder	34	30 g	0 g	$0.89	No
238	GNC Total Lean Total Lean Lean Shake Burn	34	30 g	1 g	$2.86	No