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Bulk Supplements Pure L-Glutamine Powder Supplement Review

Bulk Supplements Pure L-Glutamine is currently one of the bestselling glutamine supplements on Amazon, with thousands of highly rated customer reviews. But how does the quality compare to competing products that often cost twice as much per serving, such as those from Optimum Nutrition and MuscleTech?

As one of the most abundant amino acids in the body, glutamine is critical to muscle repair after endurance or resistance training, as a key component in protein synthesis. But how many mg of glutamine should you take each day, and is it the same for all body types?

In this review we’ll provide a guide to the health benefits of Bulk Supplements L-Glutamine, the best time of day to take it, recommended dosage, and whether you need to ‘cycle’ or go through a ‘loading phase’ as you do with some creatines.

We’ll also make important comparisons between two other top rated glutamine supplements; Optimum Nutrition Glutamine and MuscleTech Platinum Glutamine. This is to help you create the perfect supplement for your fitness goals and budget.

Bulk Supplements L-Glutamine Ingredients

Bulk Supplements Pure L-Glutamine Ingredients

Bulk Supplements specialize in providing single-ingredient supplements in bulk, at affordable prices. That’s exactly what they’ve done with L-glutamine, where you can buy sacks of up to 25 kg on Amazon.

Even following their maximum recommended dose of 3 g per day, this should last around 8,000 days, which is the equivalent to nearly 22 years. While this offers excellent value for money ($0.01 per serving at time of review), it’s probably not the most practical option.

For a more realistic 1 kg tub, which should still last just under a year at 3g/day, you’re looking at closer to $0.03 per serving. That’s considerably cheaper than every other glutamine supplement we’ve reviewed, including MusclePharm Glutamine and MuscleTech Platinum Glutamine.

Bulk Supplements L-Glutamine powder is free from soy, sugar, dairy, yeast, gluten, and additives. Because it’s in powder form rather than gelatin capsules, it’s also suitable for vegetarians and vegans.

What results can you expect?

As a non-essential amino acid, L-glutamine is taken to reduce muscle catabolism post-workout, boost your immune system, and promote a healthy digestive system. Improvements in muscle recovery have also been experienced when taken post-workout.

‘Leaky Gut Syndrome’ (LGS) is a condition associated with starvation, injury, infection, chemotherapy, and other types of stress. Many studies consider glutamine the most important nutrient for healing LGS, as it supports recovery of intestinal barrier function.

Bulk Supplements Pure L-Glutamine Powder Supplement

Bulk L-Glutamine – Product Summary

  • Available in bags from 100 g to 25 kg
  • Pure pharmaceutical grade L-Glutamine
  • Lab tested for verification & guaranteed purity
  • Promotes muscle growth & prevents muscle loss
  • Non-GMO

Health benefits of Bulk L-Glutamine

For a comprehensive list of glutamine health benefits, we recommend taking a look at our Glutamine Buying Guide.

When is the best time to take it?

Recommended use

As a dietary supplement, take 500 to 1000 mg up to three times daily, preferable before and after a workout, or as directed by a physician.

Pure L-Glutamine vs. O.N. Glutamine

Bulk Supplements Glutamine
Optimum Nutrition Glutamine

Glutamine: 1 g
Glutamine: 5 g

Serving size: 1 g
Serving size: 5 g

Container size: 1000 g
Container size: 1000 g

Cost per serving: $0.03
Cost per serving: $0.20

Pure L-Glutamine vs. MuscleTech Platinum

Bulk Supplements Glutamine
MuscleTech Platinum Glutamine

Glutamine: 1 g
Glutamine: 5 g

Serving size: 1 g
Serving size: 5 g

Container size: 1000 g
Container size: 300 g

Cost per serving: $0.03
Cost per serving: $0.29

What sizes are available?

With a serving size of 1 g and a product weight of 1000 g, each bag provides you with approximately 1000 servings. Bulk Supplements also sell their glutamine in various forms, ranging from powder to vegetarian capsules, in sizes from 100 grams up to 25 kg.

If you were to supplement with 1 gram per day, their glutamine powder sizes are enough to last you:

  • 100 grams: 14 weeks
  • 500 grams:70 weeks (17 ½ months)
  • 1 kg: 140 weeks (35 months)
  • 25 kg: 67 years+

However, most glutamine supplements have a much larger serving size of 5-10 grams per serving. If you were to take the Bulk Supplements product in this kind of quantity, twice per day, then you would need at least the 500 gram bag to get you through the first 6 weeks.

Save money with Amazon

If you’re looking to save money on your monthly supplement order, you might want to consider the Amazon Subscribe & Save program.

Subscribe & Save allows you to unlock savings of up to 15% on a wide range of sports nutrition products, including Bulk Supplements Pure L-Glutamine (selected sizes only).

You can save 5% with a subscription to 1 product, or save the full 15% by subscribing to 5 products, provided they’re all delivered to the same address. The delivery schedule can be set from monthly, up to once every 6 months.

Although 5 products might sound a lot, if you already supplement with a protein powder, multivitamin, creatine, BCAA, and glutamine, the savings can soon add up. But it’s best to order before you run out of your current supplements, because Amazon set the day of the month each order is sent (usually around the 14th).

Who are Bulk Supplements?

Bulk Supplements products are perfect if you need complete control over the level of ingredients going into your pre-workout, post-workout, and intra-workout nutrition. That’s because they supply over 200 nutritional supplement ingredients to hundreds of thousands of customers and manufacturers.

Whereas companies like MuscleTech create complex combinations of ingredients designed to offer an all-in-one ‘off the shelf’ solution, Bulk Supplements allows you to create your own custom nutrition.

It’s an idea that’s proven incredibly popular, with many of their supplements achieving thousands of positive reviews on Amazon alone. Some of the best include their micronized creatine monohydrate, whey protein powder isolate, and BCAAs.

To find out more about their current product line, we recommend taking a look at our Bulk Supplements buying guide. This includes a summary of the health benefits, which sizes and flavors are available, and dosages for the main ingredients.

We’ve also added in-depth reviews and comparisons with other top rated nutrition companies, to guarantee you only buy the best supplement for your fitness goals.

Glutamine Supplement Buying Guide
Bulk Supplements Pure L-Glutamine is currently one of the bestselling glutamine supplements on Amazon, with thousands of highly rated customer reviews. But how does the quality compare to competing products that often cost twice as much per serving, such as those from Optimum Nutrition and MuscleTech? As one of the most abundant amino acids in the body, glutamine is critical to muscle repair after endurance or resistance training, as a key component in protein synthesis. But how many mg of glutamine should you take each day, and is it the same for all body types? In this review we'll provide…

Review Overview

Overall Review Rating

4.5 / 5

Without a doubt, Bulk Supplements has the cheapest glutamine supplement on the market. Even if you don’t want to commit to ordering 25 kg, their 1 kg bag sets the price of a 5 g serving close to $0.12, just below the $0.13 of Nutricost and $0.14 of Body Fortress (at time of writing).

This is one glutamine supplement that does everything right. The price is affordable, with thousands of reviews from real customers, from a trusted brand that uses FDA-registered cGMP manufacturing facilities.

Although Bulk Supplements also produce gelatin and vegetarian glutamine capsules, the best value is from their L-glutamine powder. Being unflavored means it’s perfect for mixing with pre- and post-workout protein shakes.