Cheapest Methionine on iHerb

Ranked by real cost per 100 mg of Methionine — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 5.3× more per 100 mg of Methionine than the best-value pick Designer Wellness. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Designer Wellness, Designer Whey, Natural 100% Whey Protein Powder, Gourmet Chocolate, 12 oz (340 g)
Designer Wellness, Designer Whey, Natural 100% Whey Protein Powder, Gourmet Chocolate, 12 oz (340 g)
Designer Wellness
3,100 mg1122.990.067View on iHerb →
2
NutriBiotic, Rice Protein Powder, Vanilla, 3 lb (1.36 kg)
NutriBiotic, Rice Protein Powder, Vanilla, 3 lb (1.36 kg)
NutriBiotic
335 mg9038.610.128View on iHerb →
3
NutriBiotic, Rice Protein Powder, Chocolate, 3 lb (1.36 kg)
NutriBiotic, Rice Protein Powder, Chocolate, 3 lb (1.36 kg)
NutriBiotic
308 mg8538.610.148View on iHerb →
4
BPI Sports, ISO HD™, 100% Pure Isolate Protein, Vanilla Cookie, 4.8 lbs (2,170 g)
BPI Sports, ISO HD™, 100% Pure Isolate Protein, Vanilla Cookie, 4.8 lbs (2,170 g)
BPI Sports
575 mg7081.600.203View on iHerb →
5
BSN, AminoX, EAAs, Muscle Support & Recovery, Watermelon Smash, 13.2 oz (375 g)
BSN, AminoX, EAAs, Muscle Support & Recovery, Watermelon Smash, 13.2 oz (375 g)
BSN
400 mg2523.010.230View on iHerb →
6
BSN, AminoX®, EAAs, Strawberry Dragon Fruit, 13.2 oz (375 g)
BSN, AminoX®, EAAs, Strawberry Dragon Fruit, 13.2 oz (375 g)
BSN
400 mg2523.010.230View on iHerb →
7
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Cinnamon Cereal, 4.8 lbs (2,176 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Cinnamon Cereal, 4.8 lbs (2,176 g)
BPI Sports
569 mg6889.950.233View on iHerb →
8
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Vanilla Ice Cream, 4.8 lbs (2,176 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Vanilla Ice Cream, 4.8 lbs (2,176 g)
BPI Sports
569 mg6889.950.233View on iHerb →
9
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Fruity Loopers, 4.8 lbs (2,176 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Fruity Loopers, 4.8 lbs (2,176 g)
BPI Sports
569 mg6889.950.233View on iHerb →
10
Levels, Grass Fed Whey Protein Powder, Vanilla Cinnamon, 5 lb (2.27 kg)
Levels, Grass Fed Whey Protein Powder, Vanilla Cinnamon, 5 lb (2.27 kg)
Levels
500 mg7189.990.254View on iHerb →
11
Levels, Grass Fed Whey Protein Powder, Double Chocolate, 5 lbs (2.27 kg)
Levels, Grass Fed Whey Protein Powder, Double Chocolate, 5 lbs (2.27 kg)
Levels
490 mg7189.990.259View on iHerb →
12
MRM Nutrition, Egg White Protein, Chocolate, 12 oz (340 g)
MRM Nutrition, Egg White Protein, Chocolate, 12 oz (340 g)
MRM Nutrition
860 mg1022.490.262View on iHerb →
13
Levels, Grass Fed Whey Protein Powder, Cappuccino, 5 lb (2.27 kg)
Levels, Grass Fed Whey Protein Powder, Cappuccino, 5 lb (2.27 kg)
Levels
480 mg7189.990.264View on iHerb →
14
EHPlabs, OxyWhey, Lean Wellness Protein, Choc Caramel, 2.03 lb (922 g)
EHPlabs, OxyWhey, Lean Wellness Protein, Choc Caramel, 2.03 lb (922 g)
EHPlabs
558 mg2744.950.298View on iHerb →
15
Levels, Grass Fed Whey Protein Powder, Vanilla Cinnamon, 2 lb (907 g)
Levels, Grass Fed Whey Protein Powder, Vanilla Cinnamon, 2 lb (907 g)
Levels
500 mg2844.990.321View on iHerb →
16
Levels, Grass Fed Whey Protein Powder, Vanilla Bean, 2 lb (907 g)
Levels, Grass Fed Whey Protein Powder, Vanilla Bean, 2 lb (907 g)
Levels
500 mg2844.990.321View on iHerb →
17
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Cinnamon Cereal, 1.62 lbs (736 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Cinnamon Cereal, 1.62 lbs (736 g)
BPI Sports
569 mg2344.950.344View on iHerb →
18
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Vanilla Ice Cream, 1.62 lbs (736 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Vanilla Ice Cream, 1.62 lbs (736 g)
BPI Sports
569 mg2344.950.344View on iHerb →
19
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Chocolate Lava Cake, 1.62 lbs (736 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Chocolate Lava Cake, 1.62 lbs (736 g)
BPI Sports
569 mg2344.950.344View on iHerb →
20
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Fruity Loopers, 1.62 lbs (736 g)
BPI Sports, Hydro HD™, Hydrolyzed Whey Protein, Fruity Loopers, 1.62 lbs (736 g)
BPI Sports
569 mg2344.950.344View on iHerb →
21
MRM Nutrition, Egg White Protein, Vanilla, 12 oz (340 g)
MRM Nutrition, Egg White Protein, Vanilla, 12 oz (340 g)
MRM Nutrition
860 mg1029.990.349View on iHerb →
22
Snap Supplements, Plant Protein, Vegan Protein Powder, Chocolate, 939 g
Snap Supplements, Plant Protein, Vegan Protein Powder, Chocolate, 939 g
Snap Supplements
315 mg3033.960.359View on iHerb →
23
Snap Supplements, Plant Protein, Vegan Protein Powder, Banana, 853 g
Snap Supplements, Plant Protein, Vegan Protein Powder, Banana, 853 g
Snap Supplements
315 mg3033.960.359View on iHerb →
24
Snap Supplements, Plant Protein with Nitric Oxide Booster, Vanilla, 868 g
Snap Supplements, Plant Protein with Nitric Oxide Booster, Vanilla, 868 g
Snap Supplements
315 mg3033.960.359View on iHerb →
25
Levels, Grass Fed Whey Protein Powder, Chocolate Peanut Butter, 2 lb (907 g)
Levels, Grass Fed Whey Protein Powder, Chocolate Peanut Butter, 2 lb (907 g)
Levels
480 mg2644.990.361View on iHerb →

How we rank Methionine

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.