Mass gainers are designed to make eating more calories easier.
Unfortunately, some products also pack large amounts of sugar into those calories.
That does not mean sugar automatically makes a mass gainer bad.
Carbohydrates are valuable for training, glycogen replenishment and weight gain, and a product can contain hundreds of grams of carbohydrate without needing enormous amounts of sugar.
For many shoppers, the better goal is therefore not:
the fewest carbohydrates possible
but:
enough calories and carbohydrates for weight gain without relying heavily on sugar.
That distinction matters.
Health Canada treats “low in sugars” as a defined nutrition claim rather than a casual marketing phrase. Under current rules, a product generally must contain no more than 5 grams of sugars per applicable reference amount and serving to use that claim. “No added sugars” is also a separate claim with its own requirements.
You can review the official criteria in the Health Canada Table of Permitted Nutrient Content Statements and Claims.
For this Chrisima guide, we therefore use low-sugar mass gainer as a broader shopping category covering products that either contain relatively little total sugar for their calorie load or specifically avoid added sugars.
We clearly distinguish those claims whenever possible.
That is particularly important with mass gainers because a 1,200-calorie shake containing 9 or 10 grams of sugar may still be remarkably low in sugar relative to its total carbohydrate and calorie content, even if it does not necessarily qualify for Canada’s regulated “low in sugars” claim.
We compared current products available to Canadian shoppers to find the best low-sugar mass gainers in Canada for cleaner weight gain, focusing on total sugar, added sugar, calories, protein, carbohydrate sources, serving flexibility and Canadian availability.
Affiliate Disclosure: Chrisima may earn a commission if you purchase through some links on this page, at no additional cost to you. Product selections are based on current nutrition information, formulation, Canadian availability, value and sports-nutrition evidence.
Best Low-Sugar Mass Gainers in Canada: Quick Comparison
| Product | Calories | Protein | Sugar Positioning | Best For |
|---|---|---|---|---|
| Progressive SPORT Real Food Gainer | 500 | 30 g | 5 g total sugar | Best overall |
| Rival Nutrition Clean Gainer | 550+ | 30 g | 2–4 g added sugar depending on version | Controlled bulk |
| Mammoth Mass | 1,250 | 60 g | 9 g total sugar | High-calorie hard gainers |
| PERFECT Sports HULK | ~1,040 full serving | 50 g | 10 g total, zero added sugar | Athletes |
| ANS N-MASS | 1,300 | 55 g | Zero added sugar | Maximum calories |
Quick takeaway: Progressive SPORT Real Food Gainer offers the strongest straightforward low-sugar profile at 5 grams of sugar per 500-calorie serving. Mammoth Mass is exceptional for hard gainers because it delivers 1,250 calories while containing only 9 grams of sugar, while HULK and N-MASS stand out for avoiding added sugar.
Best Low-Sugar Mass Gainers in Canada
1. Progressive SPORT Real Food Gainer — Best Overall
Progressive SPORT Real Food Gainer is one of the clearest fits for this category.
A current two-scoop serving provides approximately:
500 calories
30 grams of protein
90 grams of carbohydrates
5 grams of fibre
and only:
5 grams of sugar.
That nutrition profile gives you a substantial calorie increase without relying heavily on sugar to get there.
Progressive uses a New Zealand whey blend alongside a broad carbohydrate and food-ingredient profile including brown rice, sweet potato, quinoa, millet, amaranth, pumpkin seed, avocado oil, coconut oil and several fruit and plant ingredients.
You can review the current formula directly through Progressive SPORT Real Food Gainer.
The product also avoids artificial flavours, colours and sweeteners.
At 500 calories, it lands in an especially useful range.
Someone trying to gain weight gradually can use the full serving without automatically adding another 1,200 calories to the day.
Why We Like It:
Only 5 grams of total sugar alongside 500 calories, 30 grams of protein and 90 grams of carbohydrate.
Best For:
People who want a meaningful calorie boost while keeping total sugar relatively low.
Possible Downside:
Someone with extremely high calorie needs may require more than one serving or a more calorie-dense product.
Chrisima Verdict:
Our best overall option for this category because the sugar number is transparent, the calories are practical and the macronutrient profile is easy to fit into a controlled bulk.
2. Rival Nutrition Clean Gainer — Best Low-Added-Sugar Controlled Gainer
Rival Nutrition Clean Gainer is another excellent choice when you want substantial carbohydrates without relying heavily on added sugars.
The standard current formula provides:
560+ calories
30 grams of protein
and more than:
95 grams of carbohydrates
per serving.
Rival currently states that the standard formula contains only about 4 grams of added sugars per serving.
Its naturally flavoured version lowers that further to approximately 2 grams of added sugars per serving and uses stevia rather than artificial sucralose or acesulfame potassium.
The carbohydrate blend incorporates ingredients such as quinoa, rice bran and oat fibre rather than positioning sugar as the main calorie source.
Rival also identifies Clean Gainer as Informed Choice certified and tested for more than 250 banned substances.
See the current formula at Rival Nutrition Clean Gainer.
One important distinction:
added sugar is not the same measurement as total sugar.
A product can contain sugars naturally originating from milk or other ingredients even if very little sugar is deliberately added.
That is why we describe Rival specifically as a low-added-sugar option rather than implying those terms are interchangeable.
Why We Like It:
Strong protein, controlled calories, very little added sugar and meaningful banned-substance testing.
Best For:
Lean bulking and athletes who want a mid-calorie mass gainer.
Possible Downside:
This is not an extreme hard-gainer product. Someone requiring 1,000+ additional calories may need multiple servings.
Chrisima Verdict:
A strong controlled-bulk option and one of the best formulas for people who care specifically about limiting added sugar.
3. Mammoth Mass — Best High-Calorie Low-Sugar Gainer
Mammoth Mass is where the numbers become particularly impressive.
A full four-scoop serving provides approximately:
1,250 calories
60 grams of protein
231 grams of carbohydrates
and only:
9 grams of sugar.
That means sugar represents a surprisingly small portion of its enormous carbohydrate load.
A half serving still provides roughly:
625 calories
30 grams of protein
and:
5 grams of sugar.
Mammoth uses a multi-source protein blend together with carbohydrate ingredients including maltodextrin, oat fibre, sweet potato and quinoa, plus MCT fats.
See the current Canadian product at Mammoth Mass.
For a genuine hard gainer, this is one of the strongest combinations of high calories and relatively modest sugar we’ve found in the Canadian market.
Why We Like It:
1,250 calories with just 9 grams of sugar is unusually efficient for a high-calorie gainer.
Best For:
Hard gainers who require large calorie increases but do not want those calories coming primarily from sugar.
Possible Downside:
A full serving is still 1,250 calories.
Low sugar does not make an excessive calorie surplus harmless.
Chrisima Verdict:
Our favourite high-calorie choice in this category.
Start with the 625-calorie half serving unless your diet genuinely requires all four scoops.
For more extreme calorie-focused options, see our Best High-Calorie Mass Gainers in Canada for Hard Gainers guide.
4. PERFECT Sports HULK — Best No-Added-Sugar Option for Athletes
PERFECT Sports HULK is another interesting Canadian option.
One scoop provides approximately:
260 calories
12.5 grams of protein
and:
42 grams of complex carbohydrates.
At a full serving, the product provides approximately 50 grams of protein and 168 grams of carbohydrate.
Most importantly for this article, PERFECT Sports states that HULK contains:
zero added sugar
and approximately:
10 grams of total sugars per full serving, primarily coming from the fruit and vegetable ingredients in the formula.
See the product at PERFECT Sports HULK.
The product also contains an 11-fruit-and-vegetable blend and is Informed Choice certified for banned-substance testing.
Serving flexibility is another major strength.
One, two, three or four scoops can be used depending on how many calories you actually need.
Why We Like It:
No added sugar, flexible serving sizes and strong sport-testing credentials.
Best For:
Canadian athletes who need a scalable mass gainer.
Possible Downside:
Ten grams of total sugar means “zero added sugar” should not be confused with “zero sugar.”
Chrisima Verdict:
One of the best athlete-focused options when avoiding added sugar matters more than chasing the absolute lowest total-sugar number.
5. ANS Performance N-MASS — Best Maximum-Calorie No-Added-Sugar Gainer
ANS N-MASS is an extreme-calorie formula designed for serious hard gainers.
A full serving currently provides approximately:
1,300 calories
55 grams of protein
and:
250 grams of carbohydrates.
ANS states that the formula contains zero added sugars and uses a carbohydrate blend alongside whey protein concentrate, milk protein isolate and micellar casein.
The product also includes:
3 grams of creatine monohydrate
plus digestive enzymes and its Appelin ingredient complex.
See the current formula at ANS Performance N-MASS.
The manufacturer specifically suggests that new users consider beginning with a half serving before progressing toward all four scoops.
That advice makes sense.
1,300 calories is an enormous addition to almost anyone’s diet.
Why We Like It:
Extreme calorie density without deliberately adding sugar, plus 55 grams of protein and creatine.
Best For:
Serious hard gainers with extremely high energy requirements.
Possible Downside:
“Zero added sugars” does not automatically mean zero total sugars, and the full 1,300-calorie serving will be excessive for many people.
Chrisima Verdict:
Our maximum-calorie no-added-sugar option.
Excellent when consuming enough food is genuinely the problem, but unnecessary for a modest lean bulk.
What Does “Low Sugar” Actually Mean in Canada?
This term deserves more precision than supplement marketing usually gives it.
Health Canada’s current nutrient-content rules define “low in sugars” using specific conditions.
The general threshold is 5 grams or less of sugars per applicable reference amount and serving, with additional rules depending on the product category and reference amount.
You can review the official requirements in the Health Canada nutrient-content-claims table.
That means a product containing 9 grams of sugar in an enormous 1,250-calorie serving may be relatively low in sugar compared with other gainers, but that does not automatically mean it meets Canada’s formal criteria for putting the phrase “low in sugar” on its packaging.
Chrisima therefore uses this page as a comparative buying guide, not as a determination of which products legally qualify to make a regulated Canadian label claim.
Total Sugar vs Added Sugar
These are not the same measurement.
Total Sugar
This includes all sugars present in the food.
That can include sugars naturally originating from ingredients such as:
- Milk
- Fruit
- Other carbohydrate ingredients
Added Sugar
This refers to sugars introduced during manufacturing.
A product can therefore truthfully contain:
zero added sugar
while still containing some total sugar.
That is why HULK can contain approximately 10 grams of total sugars while stating that it contains no added sugar.
Canadian shoppers should read both the Nutrition Facts table and ingredient list rather than relying on one front-label phrase.
Health Canada’s guide to understanding sugars on Canadian food labels explains that the % Daily Value can also help consumers compare products.
Does a Mass Gainer Need Sugar to Help You Gain Weight?
No.
Your body needs a calorie surplus to gain body weight.
Those calories can come from:
- Carbohydrates
- Protein
- Fat
Sugar is simply one type of carbohydrate.
A mass gainer can provide hundreds of grams of carbohydrates from starches while containing relatively little sugar.
Mammoth Mass is a good example.
Its current full serving contains approximately 231 grams of carbohydrate but only 9 grams of sugars.
The calories still count.
The carbohydrates still contribute to energy intake.
There is no physiological requirement for a mass gainer to be packed with sugar in order to support weight gain.
Are Carbohydrates Bad in a Low-Sugar Mass Gainer?
No.
This distinction is critical.
A low-sugar mass gainer is not the same thing as a low-carbohydrate product.
Mass gainers exist specifically to make calorie consumption easier, and carbohydrates are one of the most efficient tools for doing that.
They are also particularly useful for people performing demanding resistance training because carbohydrate intake supports muscle glycogen.
The goal is not to remove carbs.
It is to decide whether you want most of those carbohydrates coming from starch-based ingredients or a larger amount of simple sugars.
Is Maltodextrin Sugar?
Nutritionally, maltodextrin is classified as a carbohydrate rather than being listed as “sugars” on the Nutrition Facts panel in the same way glucose or sucrose would be.
It is produced from starch and is rapidly digestible.
This explains how a product can contain:
200+ grams of carbohydrates
while still showing a relatively small sugar number.
That does not mean maltodextrin has no metabolic effect.
It contributes calories and can raise blood glucose.
So don’t interpret:
low sugar
as:
low glycemic
or:
low carbohydrate.
Those are different concepts.
Is a Low-Sugar Mass Gainer Healthier?
Not automatically.
A lower sugar number is one useful characteristic.
But it tells you only one part of the formula.
You still need to examine:
- Total calories
- Protein
- Total carbohydrates
- Fibre
- Fat
- Ingredient quality
- Serving size
- Micronutrients
- Overall diet
A 1,300-calorie zero-added-sugar shake can still be inappropriate for someone who only needs another 300 calories.
Likewise, a mass gainer containing a modest amount of sugar may fit perfectly into an active person’s nutrition plan.
Low-Sugar Mass Gainer vs Clean Mass Gainer
These categories overlap heavily, but they’re not identical.
A clean mass gainer usually emphasizes the overall ingredient profile.
That may mean:
- Diverse carbohydrate sources
- Whole-food-derived ingredients
- Quality proteins
- Better fats
- Controlled calorie levels
- Low or moderate sugar
A low-sugar gainer focuses more specifically on the sugar content.
Progressive Real Food Gainer and Rival Clean Gainer fit comfortably into both categories.
Mammoth Mass is different.
At 1,250 calories, it is clearly a high-calorie hard-gainer product, but its 9 grams of sugar make it highly relevant to this page too.
For the broader formulation-focused category, see Best Clean Mass Gainers in Canada for Lean Muscle Gain.
Low-Sugar Mass Gainer vs High-Calorie Mass Gainer
These categories can absolutely overlap.
Mammoth Mass and N-MASS prove that.
You can create a 1,200–1,300 calorie product without deliberately pouring huge amounts of sugar into the formula.
The more important consideration remains whether you need that many calories.
For hard-gainer-focused comparisons, see Best High-Calorie Mass Gainers in Canada for Hard Gainers.
Are Vegan Mass Gainers Low in Sugar?
Some are.
But vegan does not automatically mean low sugar.
Plant-based mass gainers still need calories and carbohydrates, and manufacturers may use starches, maltodextrin, coconut sugar or other ingredients depending on the formula.
If plant-based nutrition is your priority, compare Best Vegan Mass Gainers in Canada for Plant-Based Weight Gain.
Will a Low-Sugar Mass Gainer Prevent Fat Gain?
No.
This is one of the most important misconceptions to avoid.
Fat gain is primarily influenced by the size and duration of your calorie surplus.
You could consume an entirely sugar-free mass gainer and still gain substantial body fat if it pushes your calorie intake far above your needs.
Research examining intentional weight gain in resistance-trained people found that larger calorie surpluses increased the rate of body-fat gain more clearly than they increased muscle thickness or strength.
A better strategy is to use the smallest consistent surplus that produces gradual weight gain.
How Many Extra Calories Should You Eat?
There is no universal number.
A review of athlete weight-gain strategies notes that approximately 300–500 additional calories per day is a commonly recommended starting point alongside resistance training and adequate protein and carbohydrate intake.
That is why serving flexibility matters.
One person may use:
one serving of Progressive.
Another may use:
half a serving of Mammoth.
A serious hard gainer may eventually need:
a full serving of N-MASS.
The correct amount depends on the calorie gap in your existing diet.
For our full category overview, see Best Mass Gainers in Canada for Muscle Growth and Weight Gain.
How Much Protein Should a Mass Gainer Prohttps://chrisima.com/sports-nutrition/mass-weight-gain/best-mass-gainers-canadavide?
Protein needs depend more on your total daily diet than one individual shake.
A mass gainer supplying 30 grams may be perfectly adequate if you already consume plenty of protein from food.
A 60-gram serving can be useful when both calories and protein are difficult to reach.
The point is not to find the highest protein number.
It is to make the product fit your complete nutrition plan.
Do Low-Sugar Mass Gainers Taste Worse?
Not necessarily.
Modern products can use:
- Sucralose
- Acesulfame potassium
- Stevia
- Natural flavours
- Sugar alcohols
- Flavour systems
to create sweetness without large quantities of sugar.
Rival even offers a naturally flavoured version using stevia and only around 2 grams of added sugars per serving.
Taste is subjective, though.
A product that looks perfect on the nutrition label is not useful if you hate drinking it every day.
Are Artificial Sweeteners Better Than Sugar?
“Better” depends on what you’re trying to achieve.
Artificial or high-intensity sweeteners can lower the amount of sugar needed to make a shake taste sweet.
That can be useful when reducing sugar is a priority.
Some consumers prefer to avoid them and may choose stevia-based or naturally flavoured products instead.
This is largely a preference decision rather than the main factor determining whether a mass gainer supports muscle gain.
Who Should Consider a Low-Sugar Mass Gainer?
This category is particularly useful for people who:
- Need additional calories
- Want to keep sugar relatively modest
- Prefer carbohydrate-heavy rather than sugar-heavy gainers
- Want better control during a bulk
- Already consume plenty of sugar elsewhere
- Are comparing clean-bulk options
- Want high-calorie shakes without huge sugar numbers
Who Probably Doesn’t Need a Mass Gainer?
If you already reach your calorie requirements comfortably through food, there is no need to add a mass gainer simply because it is low in sugar.
Likewise, if your only nutritional shortfall is protein, an ordinary whey or plant-protein supplement may make more sense.
A mass gainer exists to solve an energy-intake problem.
How to Choose the Best Low-Sugar Mass Gainer in Canada
Look at Total Sugar
This is the obvious starting point.
But make sure you’re comparing equivalent serving sizes.
Five grams in a 500-calorie serving is very different from five grams in a 100-calorie product.
Check Added Sugar Separately
A “no added sugar” formula may still contain naturally occurring sugars.
Don’t confuse the two claims.
Compare Sugar With Total Carbohydrates
This tells you what proportion of the carbohydrate load is actually coming from sugar.
Mammoth’s 9 grams of sugar within more than 230 grams of total carbohydrate is a good example.
Check Total Calories
Low sugar does not mean low calorie.
Some of the products in this article exceed 1,200 calories.
Check Protein
Make sure the formula contributes meaningfully toward your total protein needs.
Look at Serving Flexibility
One- or two-scoop options make controlling the calorie surplus much easier.
Read the Ingredient List
Look beyond front-label claims.
Health Canada’s sugar-labelling guidance explains how sugars-based ingredients appear on Canadian ingredient lists.
Consider Third-Party Testing
Competitive athletes should look for certifications such as Informed Choice or other credible banned-substance testing.
Use the Canadian Nutrition Label
The % Daily Value can help compare total sugar between foods.
Health Canada describes 5% DV or less as a little and 15% DV or more as a lot when reading the Nutrition Facts table.
Frequently Asked Questions
What is the best low-sugar mass gainer in Canada?
Progressive SPORT Real Food Gainer is our best overall choice because a 500-calorie serving provides 30 grams of protein and only 5 grams of sugar.
What is the best low-sugar mass gainer for hard gainers?
Mammoth Mass is our leading hard-gainer choice because a full 1,250-calorie serving contains 60 grams of protein and only 9 grams of sugar.
What mass gainer has no added sugar?
PERFECT Sports HULK and ANS N-MASS both currently emphasize zero added sugar.
That does not necessarily mean zero total sugar.
Is low sugar the same as no added sugar?
No.
Total sugar includes naturally occurring sugars.
“No added sugar” refers specifically to sugar not being added during formulation, subject to Canadian labelling requirements.
Is 10 grams of sugar high for a mass gainer?
Context matters.
Ten grams of sugar within a 1,000-calorie product is relatively modest compared with its total energy and carbohydrate load.
But it may not meet Canada’s regulated definition of a “low in sugars” product.
Does mass gainer need sugar to work?
No.
Weight gain requires a calorie surplus.
Those calories can come from starches, protein and fat as well as sugar.
Does low sugar mean low carbohydrate?
No.
Many low-sugar mass gainers remain extremely high in carbohydrates.
Is maltodextrin sugar?
Maltodextrin is classified as a carbohydrate rather than being listed as sugar in the same way glucose or sucrose would be.
It still contributes calories and can affect blood glucose.
Will a low-sugar mass gainer help me stay lean?
Not automatically.
Controlling your overall calorie surplus is much more important for minimizing unnecessary fat gain.
Are low-sugar mass gainers good for beginners?
Yes.
Products with flexible serving sizes are particularly useful because beginners can increase calories gradually.
Can women use low-sugar mass gainers?
Yes.
Serving size should be based on individual calorie requirements rather than gender.
Can I take a low-sugar mass gainer every day?
Yes, if you need it every day to reach your calorie target.
If normal meals already provide enough energy, you do not need to force in an additional shake.
Can I take mass gainer and creatine together?
Yes.
Check the product label first because some high-calorie gainers, including N-MASS, already contain creatine.
Is low-sugar mass gainer better than whey protein?
They serve different purposes.
Whey mainly increases protein.
Mass gainers increase both calories and protein.
Can I make a low-sugar mass gainer at home?
Yes.
A homemade shake using whey, oats, milk, peanut butter and other minimally sweetened ingredients can provide substantial calories while allowing you to control the sugar content precisely.
Final Thoughts
The best low-sugar mass gainers in Canada for cleaner weight gain prove that adding calories does not require drinking enormous quantities of sugar.
Progressive SPORT Real Food Gainer is our best overall option with approximately 500 calories, 30 grams of protein and only 5 grams of sugar.
Rival Nutrition Clean Gainer stands out for keeping added sugar very low while providing more than 550 calories and 30 grams of protein.
Mammoth Mass is exceptional for hard gainers, providing approximately 1,250 calories and 60 grams of protein with only 9 grams of total sugar.
PERFECT Sports HULK combines flexible serving sizes with zero added sugar and strong sport-testing credentials.
And ANS N-MASS provides the most aggressive calorie option, with approximately 1,300 calories, 55 grams of protein and zero added sugar.
But sugar is only one number.
A 1,300-calorie shake does not become appropriate simply because no sugar was added.
The most important strategy remains:
determine your calorie gap
choose a serving that fills it
consume enough protein
train progressively
and
monitor your weight trend.
That will matter far more for building muscle cleanly than chasing the lowest sugar number on the shelf.
For the complete Mass & Weight Gain category, see our Best Mass Gainers in Canada for Muscle Growth and Weight Gain pillar guide.
For controlled bulking, see Best Clean Mass Gainers in Canada for Lean Muscle Gain.
For extreme calorie needs, compare Best High-Calorie Mass Gainers in Canada for Hard Gainers.
And for plant-based options, see Best Vegan Mass Gainers in Canada for Plant-Based Weight Gain.
Medical Disclaimer: This article is for general informational purposes only and is not medical advice. People with diabetes or blood-sugar concerns, kidney disease, digestive disorders, food allergies or other medical conditions, anyone using relevant medications, and people who are pregnant or breastfeeding should speak with an appropriate healthcare professional before making major dietary or supplement changes.