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Universal Nutrition Natural Lean Mass Stack

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Universal The Natural Lean Mass Stack

Are you looking to put on muscle, while torching that unwanted body fat?  If you are like most people, then the answer was a resounding YES.  Universal Nutrition created The Natural Lean Mass Stack for serious bodybuilders looking to get that ripped looked that turns heads at the gym and on the beach.  Each product in the stack plays an integral role in helping you reach your ultimate physique.

Products Included In The Natural Lean Mass Stack:

• Animal Pak
• Animal Cuts 
• Animal M-Stak

Why You Need This Stack:

The Natural Lean Mass Stack gives you the tools you need to finally get that cut, ripped physique you have been chasing.  A brief explanation of why each product was included in the stack is included below.  A more comprehensive look can be found further down.

Animal Pak has been included  to offset dietary imbalances, give you energy, and maintain proper health during periods of intense exercise and dieting.

Animal Cuts revs up your metabolism, suppresses your appetite, and converts fat stores into energy.

Animal M-Stak was added to The Natural Lean Mass Stack to increase protein synthesis, preserve muscle tissue, and synergistically improve the performance of the other products included in the stack.

Recommended Stack Schedule

Animal Pak

1 packs daily, with breakfast

Animal Cuts

2 packs daily, once in the morning before breakfast and another in the early afternoon, allowing for at least 3-4 hours between each pack

Animal M-Stak

1 pack daily, 30-45 minutes prior to training

Universal Animal Pak

Universal Nutrition launched in 1983 with Animal Pak, one of the most important and best-selling supplements ever!  In fact, Animal Pak has sold more training packs than any other product on the market.  Unitl Animal Pak came along, multivitamins contained a blend of vitamins and minerals and very little else.  Universal Nutrition changed the game by including digestive enzymes, amino acids, and powerful antioxidants to offset dietary imbalances and improve overall health.  Bodybuilders and athletes quickly took notice and adopted the multivitamin into their training regimen.  More than 30 years later Animal Pak is still among the top-selling vitamins! 

Universal Animal Pak Benefits

•#1 Training Pack in the World for More Than 30Years

•Adopted by Athletes and Bodybuilders

•Supports Healthy Immune Function

•Against Oxidative Stress

•Improves Recovery


Dosage: Take a single pack with breakfast or any other meal, with plenty of water. For those who compete or are training with higher intensity, take two packs daily, separated by 4-12 hours.


Container Size: 44 Paks
Serving Size: 2 Paks 
Servings Per Container: 22

Amount Per Serving
Calories 40
Total Carbohydrate 4 g < 2%
Dietary Fiber 2 g 8%
Protein 6 g 12%
Calcium 2 g 200%
Riboflavin 76 mg 4471%
Biotin 300 mcg 100%
Phosphorus 1330 mg 133%
Folic Acid 400 mcg 100%
Vitamin D (as Cholecalciferol) 680 IU 170%
Niacin (as Niacinamide) 82 mg 410%
Iodine (from Kelp) 150 mcg 100%
Selenium (as Sodium Selenate) 50 mcg 71%
Pantothenic Acid (as Calcium Pantothenate) 76 mg 760%
Magnesium (as Oxide) 400 mg 100%
Manganese (as Sulfate) 5 mg 250%
Zinc (as Oxide) 30 mg 200%
Thiamin (as Mononitrate) 76 mg 5067%
Copper (as Sulfate) 600 mcg 30%
Potassium (as Sulfate) 200 mg 6%
Vitamin C (as Ascorbic Acid & Ascorbyl Palmitate) 1 g 1667%
Vitamin B12 (Methylcobalamin and Cyanocobalamin) 11 mcg 185%
Chromium (as Chloride) 60 mcg 50%
Vitamin A (as Carotenoids [B-Carotene, a-Carotene], acetate) 9900 IU 198%
Probolic Adaptogen Complex 300 IU 1000%
Vitamin B6 (as Pyridoxine AKG, Pyridoxine HCI) 180 mg 9000%

Performance Complex
Uni-Liver 4080mg
Carnitine 25mg
Choline 250mg
Eleuthero (root) 1750mg
Hawthorne (berry) 250mg
Inositol 125mg
Milk Thistle 500mg
Oriental Ginseng (root) 250mg
Para-Aminobenzoic Acid 400mg
Pyridoxine a-Ketoglutarate 200mg

Antioxidant Complex
Alpha Lipoic Acid (ALA) 100mg
Citrus Bioflavonoids 1000mg
Coenzyme Q10 (CoQ10) 5mg
Grapeseed Extract 50mg
Lutein 1mg
Lycopene 1mg
Pine Bark Extract 200mg

Digestive Enzyme Complex
Bromelain 100mg
Inulin 250mg
Lipase 10mg
Pancreatin 700mg
Papain 64mg
Pepsin 64mg

Probolic Adaptogen Complex 1000mg
Muira Puama, Kudzu (Isoflavones), Safed Musli, Rhodiola Rosea (Rosavins)

Other Ingredients: Dicalcium Phosphate, Whey Protein Concentrate (Milk), Glucose Polymers, Microcrystalline Cellulose, Arginine (a-Ketoglutarate, Dessicated Argentine Liver (Bovine), Stearic Acid, Magnesium Stearate, Choline Bitartrate, Calcium Carbonate, Silicon Dioxide, D-Calcium Pantothenate, Lecithin (Soy), Carnitine Fumarate, Calcium Citrate, Alfalfa, Rose Hips, Rice Bran, Parsley, Burdock.

Universal Nutrition Animal Cuts

Nobody likes dieting.  The plain foods and change in mood can have a detrimental effect on your work and relationships.  This is where Universal Nutrition Animal Cuts saves the day.  The formula contains a synergistic blend of ingredients that increase energy, improve mood, and suppress appetite  Among the ingredients in this product are Raspberry Ketones, Green Tea Extract, and Coffee Bean Extract.  You may recognize these products from t.v. doctors singing their praises.  They are all sold as separate ingredients, but you can get them all in one product, saving you time and money!

Universal Nutrition Animal Cuts Benefits

•Converts Fat into Energy

•Improves Mood

•Controls Hunger


Take 1 Pack in the morning, and if desired another 4-6 hours later. Contains Stimulants may disrupt sleep if taken prior to sleep.


One pak supplies the following ingredients: 
Niacin (as niacinamide) - 15 mg 
Vitamin B6 (as pyridoxine HCL) - 2 mg 
Thermogenic Complex - 575 mg 
Epigallocatechin Gallate (EGCG) 
PEA (phenylethylamine) 
Lipotropic Complex - 75 mg 
Choline Citrate 
Betaine HCL 
Inositol Monophosphate 
Metabolic Complex - 900 mg 
Guarana (22% Caffeine) 
Diuretic Complex - 750 mg 
Dandelion Extract (taraxol, taraxerol) 
Uva Ursi Extract 
(arbutin, methyl-arbutin) 
Thyroid Complex - 175 mg 
Guggul (2.5% Guggulsterones) 
Soy Isoflavones 
Insulin Potentiators - 100 mg 
Alpha Lipoic Acid 
Chromium Polynicotinate 
Chromium Picolinate 
Nucleotide Regulators - 300 mg 
Neurotransmitter Regulators - 250 mg 
St. John's Wort (0.3% hypericin) 
Animal Cuts Complex - 812 mg 
Citrilene (-hydroxycitric acid) 
Grapefruit Extract (naringin, naringenin) 
White Willow (bark) 
Phenylalanine (as L-phenylalanine) 
Ginger Root Extract (gingerols, shoagols)

Other Ingredients: 
Bitter orange extract, green tea extract, cocoa extract, potassium phosphate, magnesium phosphate, magnesium stearate, gelatin, stearic acid

Universal Nutrition Animal Methoxy Stak 21 Pack

Animal M-Stak is designed for hardgainers, average Joe's, and serious bodybuilders alike.  The formula creates an probolic environment for muscle growh, promoting increased protein synthesis and nitrogen retention.  M-Stak is also anti-catabolic, meaning that it prevents muscle breakdown.  So, M-Stak not only helps build new lean muscle mass, but it preserves your current muscle.  When combined with Animal Pak and Animal Cuts, you will gain muscle, lose fat, and sustain high levels of energy and focus.

Universal Nutrition Animal Methoxy Stak 21 Pack Benefits

•Creates Probolic Window

•Increases Protein Synthesis


•Helps Bust Through Training Plateaus


Take one pack every day for 21 consecutive days. On training days, take a pack 45 minutes prior to exercise. On non-training days, take a pack in the morning or early afternoon.


One pak supplies the following ingredients: 
Natural Flavone Complex: 
5-Methyl-7Methoxyisoflavone - 100mg 
7-Isopropoxyisoflavone - 100mg 
20-Hydroxyecdysone - 100mg

Growth Hormone (hGH) Secretagogues: 
L-Arginine Pyroglutamate - 2.5g 
L-Ornithine Alpha-Ketoglutarate - 1.3g 
Lysine - 1.2g 
(as lysine HCl) 
Taurine - 750mg 
(as L-taurine) 
Leucine - 100mg 
(as L-leucine) 
Isoleucine - 50mg 
(as L-isoleucine) 
Valine - 50mg 
(as L-valine)

Luteinizing Hormone (LH) Boosters: 
Tribulus Extract - 250mg 
(29% unapproved substanceal saponins) 
Acetyl-L-Carnitine (ALC) - 250mg 
Carnitine - 50mg 
(as L-carnitine)

Anti-Aromatase Inhibitors: 
5,7-Dihydroxyflavone - 100mg 
Kudzu Extract - 150mg

DHT Blockers: 
Saw Palmetto Extract - 200mg 
Beta Sitosterol - 250mg 
Pygeum Extract - 50mg

Insuline Potentiators: 
Alpha Lipoic Acid - 10mg 
Chromium Picolinate - 100 mcg

Metabolic Energy Complex: 
Guarana Extract - 500mg 
(22% caffeine) 
Bitter Orange Extract - 400mg 
(4% synephrine) 
Cordyceps Extract - 100mg 
(7% cordyceptic acid)

Liver Detoxifying Complex: 
Lysophosphatidylcholine - 50mg 
(from lecithin) 
Milk Thistle [seed] - 75mg

Other Ingredients: 
Gelatine, dicalcium phosphate, whey, microcrystalline cellulose, stearic acid, magnesium stearate.


Consuming this product can expose you to chemicals including lead, which is known by the State of California to cause birth defects or other reproductive harm.” For more information go to

†We make every effort to ensure that the product images displayed on our website faithfully represent what you will receive. However, we recognize that digital representations can sometimes fall short of capturing every nuance of the product's physical attributes. Differences in color, size, and packaging details might exist. To mitigate this, we advise our valued customers to delve into the product descriptions where the specific features, ingredients, and usage instructions of each product are meticulously outlined. This approach helps bridge the gap between expectation and reality, ensuring you are fully informed about your purchase.

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to treat, cure, diagnose, or prevent any disease.

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