The best casein and night-time protein in Canada are the slow-digesting shakes you reach for before bed or during long gaps between meals — the counterpart to fast-digesting whey. Our top in-stock picks are ALLMAX CaseinFX (2lbs), PEScience Select Protein (27 servings) and, as a lighter alternative, Believe Supplements Protein Refresher. Every product below is in stock in our Montreal store, priced per the unit named in its title, and shipped same-day across Canada when you order by 4 PM EST.

Best overall for night-time / before bed: ALLMAX CaseinFX. It is the only 100% micellar casein on this list — the genuine slow-release protein — delivering 25 g of protein per scoop that your body absorbs gradually over several hours. It is also the most filling, which many people find helps curb late-night snacking. If you would rather own a single do-everything tub, PEScience Select Protein is our best all-rounder: a whey + casein blend that covers daytime and evening in one scoop and happens to taste like dessert.

Top picks (in stock)

Casein vs whey: slow vs fast

Whey and casein both come from milk, but they behave very differently once you drink them. Whey is fast-digesting: it raises blood amino acids quickly and briefly, which suits the window right after a workout. Casein is slow-digesting: micellar casein clots into a soft gel in the stomach and releases amino acids steadily for several hours, so it is favoured before bed, first thing in the morning, or any time a long stretch without food is coming. ALLMAX CaseinFX is a pure micellar casein for exactly this job, while PEScience Select Protein blends both proteins so you get an immediate hit plus a longer tail from one scoop — PEScience designs it for amino delivery that lasts up to 4–5 hours. The larger 5 lb Select Protein tub is the same blend at the lowest cost per serving if it becomes your daily protein.

Best for overnight recovery and satiety

Slow-release proteins are popular at night for two reasons. First, a steady overnight supply of amino acids helps support muscle recovery while you sleep. Second, casein is thick and filling — owner-tested, CaseinFX mixes into a creamy, milkshake-like texture and even sets into a pudding, which makes it a satisfying way to close out the day without reaching for dessert. For most people a single scoop 30–60 minutes before bed is plenty; follow the directions on the label.

Full comparison (protein, calories, sugar)

Product Brand Type Protein / serving Calories Sugar Price
ALLMAX CaseinFX — Slow-Release Micellar Casein Protein Powder (2lbs) Allmax Nutrition 100% micellar casein 25 g ~130 1 g $59.99
PEScience Select Protein (27 servings) PEScience Whey + casein blend 24 g ~110–120 1–2 g carb† $75.99
PEScience Select Protein (55 servings) PEScience Whey + casein blend (value size) 24 g ~110–120 1–2 g carb† $138.99
Believe Supplements Protein Refresher — Clear Juice Whey Isolate (25 servings) Believe Supplements Clear whey isolate + collagen 21 g 90 0 g $74.99
PVL ISO CLEAAR Clear Protein — Beef & Pea Protein, Dairy-Free (25 Servings) PVL Clear, dairy-free blend 20 g 80 0 g $52.99
ALT Clear Protein Grass Fed Whey Isolate (20 servings) ALT Clear grass-fed whey isolate ~20 g —† 0 g $79.99

Macros are per scoop/serving as printed on each product’s current Canadian label. †Where a brand does not print sugar or calories separately, we show the figure it does publish (for PEScience Select, total carbohydrate of 1–2 g; ALT does not print a calorie figure on its label). Always check the individual product page for the full nutrition panel.

Clear whey and clear isolate: a lighter alternative

Not everyone wants a thick, milky shake in the evening. Clear protein is an isolate purified so it mixes into a light, juice-like drink instead of a creamy shake — refreshing, easy on the stomach and nice served cold. It digests quickly like regular whey (so it is not a slow-release protein), but it is a great lighter option when a heavy shake feels like too much. Believe Supplements Protein Refresher is a Quebec-made clear juice isolate with 21 g protein and just 90 calories per serving; PVL ISO CLEAAR is the most affordable and is fully dairy-free at 20 g protein and 80 calories; and ALT Clear Protein is a grass-fed whey isolate sweetened with stevia and monk fruit. All three come in fruit flavours with 0 g sugar.

Frequently asked questions

What is casein protein, and how is it different from whey? Casein and whey are the two proteins naturally found in milk. Whey digests fast and floods your bloodstream with amino acids within an hour, which is why it is popular right after training. Casein digests slowly — micellar casein forms a soft gel in the stomach and releases amino acids gradually over several hours, which is why it is the classic choice for before bed or long gaps between meals. Our dedicated casein pick is ALLMAX CaseinFX.

Is casein good to take before bed? It is the most common way people use it. Because micellar casein releases amino acids slowly overnight, many lifters sip it before sleep so their muscles have a steady amino-acid supply through the night. A whey + casein blend like PEScience Select Protein works well here too, since it pairs a fast and a slow protein in one scoop.

What is clear whey or clear isolate protein? Clear protein is whey (or, in some cases, beef and plant) isolate that has been purified and acidified so it dissolves into a light, translucent, juice-like drink instead of a creamy shake. It is lighter on the stomach and refreshing cold — a good lighter alternative to a heavy evening shake. Our clear options are Believe Supplements Protein Refresher, PVL ISO CLEAAR and ALT Clear Protein.

Is clear whey slow-digesting like casein? No. Clear protein is an isolate and digests quickly, like regular whey — it is chosen for its light, refreshing texture rather than for slow release. If your goal specifically is a slow, overnight amino-acid feed, choose a micellar casein or a whey + casein blend instead.

How much protein per serving do these deliver? It ranges from about 20 g to 25 g per serving depending on the product, as printed on each label: ALLMAX CaseinFX delivers 25 g, PEScience Select Protein 24 g, Believe Protein Refresher 21 g, and both PVL ISO CLEAAR and ALT Clear about 20 g. Check the individual product page for the full panel.

Can I order casein and clear protein anywhere in Canada? Yes — we ship every product on this page Canada-wide from our Montreal store, usually same-day when you order by 4 PM EST.

Why buy from Top Nutrition & Fitness

Slow-release casein and the newer clear proteins are two categories our customers ask about constantly — usually as “casein protein,” “night time protein,” “slow protein” or “clear protein.” We stock a dedicated micellar casein, a proven whey + casein blend and three clear isolates so you can match the format to how and when you drink it. Every option here is one we would keep in our own pantry.

Shop with confidence: every order ships same-day when placed by 4 PM EST from our Montreal store, with free 30-day returns. Free shipping on qualifying orders.

This guide is for general educational purposes and is not medical or nutritional advice. Protein powders are foods, not medicine, and are not intended to diagnose, treat, cure or prevent any disease. Nutrition needs vary by individual — consult a qualified healthcare professional before starting any new supplement, especially if you are pregnant, nursing or managing a health condition. Nutrition figures are drawn from each manufacturer’s current Canadian label and may change; confirm details on the product packaging.

About the author

Diana Famintsyna founded Top Nutrition & Fitness in Montreal in July 2016 and has personally curated and taste-tested the store’s supplement and food catalogue ever since. Product selections and facts on this page are based on our live inventory and hands-on experience, and every product listed is in stock as of September 2026.

En français

Les meilleures protéines caséine et « de nuit » au Canada sont les shakes à digestion lente que l’on prend avant le coucher ou entre des repas espacés — le complément de la whey à digestion rapide. La caséine micellaire, comme ALLMAX CaseinFX, se gélifie dans l’estomac et libère ses acides aminés sur plusieurs heures, tandis que PEScience Select Protein mélange whey et caséine pour une libération à la fois rapide et prolongée. Pour une option plus légère, les protéines « clear » de type jus — Believe Supplements Protein Refresher, PVL ISO CLEAAR et ALT Clear Protein — se mélangent en une boisson transparente et rafraîchissante. Tous les produits ci-dessus sont en stock en date de septembre 2026, expédiés le jour même depuis notre boutique de Montréal partout au Canada.