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SlimFast Shake Mix is a powdered meal-replacement shake designed for weight management, typically blended with water or milk. It delivers a sweet, creamy, and often chocolate or vanilla-flavored beverage with a smooth, non-gritty texture when properly mixed. Nutritionally, it's engineered to be high in fiber and moderate in protein while controlling calories for a structured diet plan.
Calorie split: 7% protein · 66% carbs · 27% fat
↓ Full nutritionPeople appreciate its convenience for busy lifestyles and the predictable, sweet taste that satisfies cravings without derailing a diet. The variety of flavors and its role as a structured tool in the SlimFast plan provide a clear framework for weight-loss efforts.
The high sugar content (38.02g per 100g) can lead to rapid blood-sugar spikes and subsequent energy crashes. It may not provide the same fullness or nutritional complexity as a whole-food meal, and some may find the processed taste unappealing. To counteract, blend with a source of healthy fat (like nut butter) or protein (like Greek yogurt) to slow sugar absorption, and use it as a supplement rather than a sole food source.
The original SlimFast plan, launched in 1977, famously marketed the '2-3-1' strategy: two meal-replacement shakes, three snacks, and one 'sensible' meal per day.
| Water | 2.0 g |
| Energy | 448 kcal |
| Energy | 1876 kj |
| Protein | 8.1 g |
| Total lipid (fat) | 13.3 g |
| Ash | 2.6 g |
| Carbohydrate, by difference | 73.9 g |
| Fiber, total dietary | 18.1 g |
| Total Sugars | 38.0 g |
| Calcium, Ca | 364 mg |
| Iron, Fe | 0.68 mg |
| Magnesium, Mg | 385 mg |
| Phosphorus, P | 385 mg |
| Potassium, K | 247 mg |
| Sodium, Na | 472 mg |
| Zinc, Zn | 17.3 mg |
| Copper, Cu | 0.77 mg |
| Selenium, Se | 67.3 ug |
| Vitamin C, total ascorbic acid | 1.3 mg |
| Thiamin | 1.4 mg |
| Riboflavin | 0.65 mg |
| Niacin | 38.5 mg |
| Pantothenic acid | 15.4 mg |
| Vitamin B-6 | 2.3 mg |
| Folate, total | 385 ug |
| Folic acid | 384 ug |
| Folate, food | 1.0 ug |
| Folate, DFE | 653 ug |
| Choline, total | 3.4 mg |
| Vitamin B-12 | 8.1 ug |
| Vitamin B-12, added | 8.1 ug |
| Vitamin A, RAE | 1034 ug |
| Retinol | 1034 ug |
| Carotene, beta | 1.0 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Vitamin A, IU | 3447 iu |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 0.00 ug |
| Vitamin E (alpha-tocopherol) | 51.9 mg |
| Vitamin E, added | 51.9 mg |
| Vitamin D (D2 + D3), International Units | 385 iu |
| Vitamin D (D2 + D3) | 9.6 ug |
| Vitamin K (phylloquinone) | 96.2 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 0.00 mg |
| Theobromine | 0.00 mg |
| Fatty acids, total saturated | 1.4 g |
| SFA 4:0 | 0.01 g |
| SFA 6:0 | 0.00 g |
| SFA 8:0 | 0.00 g |
| SFA 10:0 | 0.01 g |
| SFA 12:0 | 0.01 g |
| SFA 14:0 | 0.05 g |
| SFA 15:0 | 0.14 g |
| SFA 16:0 | 0.73 g |
| SFA 18:0 | 0.78 g |
| SFA 22:0 | 0.17 g |
| Fatty acids, total monounsaturated | 10.5 g |
| MUFA 16:1 | 0.02 g |
| MUFA 18:1 | 9.5 g |
| MUFA 20:1 | 0.11 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 1.2 g |
| PUFA 18:2 | 1.8 g |
| PUFA 18:3 | 0.10 g |
| PUFA 18:4 | 0.00 g |
| PUFA 20:4 | 0.00 g |
| PUFA 20:5 n-3 (EPA) | 0.00 g |
| PUFA 22:5 n-3 (DPA) | 0.00 g |
| PUFA 22:6 n-3 (DHA) | 0.00 g |
| Fatty acids, total trans | 0.00 g |
| Cholesterol | 5.0 mg |
Estimated from Beverages, carbonated, tonic water — USDA does not publish this profile for Beverages.
| Tryptophan | 0.00 g |
| Threonine | 0.00 g |
| Isoleucine | 0.00 g |
| Leucine | 0.00 g |
| Lysine | 0.00 g |
| Methionine | 0.00 g |
| Cystine | 0.00 g |
| Phenylalanine | 0.00 g |
| Tyrosine | 0.00 g |
| Valine | 0.00 g |
| Arginine | 0.00 g |
| Histidine | 0.00 g |
| Alanine | 0.00 g |
| Aspartic acid | 0.00 g |
| Glutamic acid | 0.00 g |
| Glycine | 0.00 g |
| Proline | 0.00 g |
| Serine | 0.00 g |
How is the SlimFast 3-2-1 Plan different from other shakes?
The 3-2-1 Plan is a structured daily regimen: two SlimFast shakes, three 100-calorie snacks, and one balanced 500-calorie meal, providing a complete dietary framework rather than just a product.
Can I use water instead of milk to mix the shake?
Yes, using water reduces the overall calorie and sugar content of the shake, which is often preferred for stricter calorie control during the plan.
Is this shake suitable for people with diabetes?
Due to its high sugar content, individuals with diabetes should consult a healthcare provider before use, as it may significantly impact blood glucose levels.
NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.
Sodium-to-potassium ratio: 1.91 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.