Beverages, SLIMFAST, Meal replacement, High Protein Shake, Ready-To-Drink, 3-2-1 plan
Whole food · Beverages
Photo: Wikipedia
A creamy, ready-to-drink meal replacement shake designed for the SlimFast 3-2-1 plan, offering a convenient, low-calorie protein boost. Its smooth, milkshake-like texture comes in classic flavors like chocolate or vanilla, making it an easy on-the-go option. Nutritionally, it's engineered for high protein and very low carbohydrate content to support weight management goals.
Calorie split: 44% protein · 6% carbs · 51% fat
↓ Full nutrition💚 Why it's loved
People love it for its dessert-like taste and texture that satisfies a sweet craving without derailing a calorie-controlled diet. Its ultimate convenience makes it a go-to for busy schedules or when a full meal isn't practical.
⚠️ Watch-outs & how to enjoy it better
Some may find the artificial sweeteners or flavors less appealing than whole foods, and the low fiber content might not provide lasting fullness for everyone. Those with dairy allergies or sensitivities should avoid it, as the primary protein source is typically milk-based. To counteract potential digestive discomfort from sweeteners, start with a half serving and ensure adequate water intake throughout the day.
Key benefits
- High in protein for satiety and muscle maintenance
- Very low in calories and carbohydrates
- Convenient, portable, no-prep meal or snack replacement
- Part of a structured, portion-controlled diet plan
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The SlimFast brand became a cultural icon in the 1980s and 90s with its 'A shake for breakfast, a shake for lunch, and a sensible dinner' marketing slogan, helping to popularize the entire meal-replacement shake category.
Full nutrition (USDA data · scales with serving)
| Water | 88.6 g |
| Energy | 61.0 kcal |
| Energy | 255 kj |
| Protein | 6.6 g |
| Total lipid (fat) | 3.4 g |
| Ash | 0.61 g |
| Carbohydrate, by difference | 0.85 g |
| Fiber, total dietary | 0.40 g |
| Total Sugars | 0.60 g |
| Calcium, Ca | 130 mg |
| Iron, Fe | 0.96 mg |
| Magnesium, Mg | 44.0 mg |
| Phosphorus, P | 136 mg |
| Potassium, K | 179 mg |
| Sodium, Na | 72.0 mg |
| Zinc, Zn | 0.85 mg |
| Copper, Cu | 0.01 mg |
| Selenium, Se | 4.5 ug |
| Vitamin C, total ascorbic acid | 19.4 mg |
| Thiamin | 0.17 mg |
| Riboflavin | 0.19 mg |
| Niacin | 2.4 mg |
| Pantothenic acid | 1.2 mg |
| Vitamin B-6 | 0.21 mg |
| Folate, total | 39.0 ug |
| Folic acid | 41.0 ug |
| Folate, food | 0.00 ug |
| Folate, DFE | 69.0 ug |
| Choline, total | 0.00 mg |
| Vitamin B-12 | 0.60 ug |
| Vitamin B-12, added | 0.00 ug |
| Vitamin A, RAE | 171 ug |
| Retinol | 171 ug |
| Carotene, beta | 0.00 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| Vitamin A, IU | 571 iu |
| Lycopene | 0.00 ug |
| Lutein + zeaxanthin | 0.00 ug |
| Vitamin E (alpha-tocopherol) | 4.6 mg |
| Vitamin E, added | 4.6 mg |
| Vitamin D (D2 + D3), International Units | 45.0 iu |
| Vitamin D (D2 + D3) | 1.1 ug |
| Vitamin D3 (cholecalciferol) | 1.1 ug |
| Vitamin K (phylloquinone) | 6.5 ug |
| Alcohol, ethyl | 0.00 g |
| Caffeine | 0.00 mg |
| Theobromine | 0.00 mg |
Fat & fatty acid profile (per 100g)
| Fatty acids, total saturated | 0.51 g |
| SFA 4:0 | 0.00 g |
| SFA 6:0 | 0.00 g |
| SFA 8:0 | 0.00 g |
| SFA 10:0 | 0.00 g |
| SFA 12:0 | 0.00 g |
| SFA 14:0 | 0.01 g |
| SFA 16:0 | 0.30 g |
| SFA 17:0 | 0.00 g |
| SFA 18:0 | 0.14 g |
| SFA 20:0 | 0.03 g |
| SFA 22:0 | 0.01 g |
| Fatty acids, total monounsaturated | 2.1 g |
| MUFA 16:1 | 0.01 g |
| MUFA 17:1 | 0.00 g |
| MUFA 18:1 | 2.0 g |
| MUFA 20:1 | 0.04 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 0.77 g |
| PUFA 18:2 | 0.46 g |
| PUFA 18:3 | 0.22 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 | 4.0 mg |
Amino acid profile (per 100g)
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 |
FAQ
Is this a complete meal replacement?
It's designed as part of a structured plan (like the 3-2-1 plan) where it replaces one or two meals, not all daily nutrition. It lacks the full spectrum of vitamins, minerals, and fiber found in a balanced whole-food meal.
What does it taste like?
It has a smooth, creamy, milkshake-like consistency, typically in sweet flavors such as chocolate, vanilla, or strawberry. The taste is engineered to be palatable and dessert-like.
Can I use it if I'm lactose intolerant?
Most SlimFast shakes are dairy-based and contain lactose. While some lines may offer lactose-free options, you should always check the label for specific allergen information.
Nutrient density (calculated · NRF9.3)
Nutrient Rich Foods index: beneficial nutrients (protein, fiber, vitamins, minerals) minus saturated fat, added sugar & sodium, per 100 kcal.
NRF9.3 index — Fulgoni, Keast & Drewnowski, 2009. Computed from USDA nutrients.
Weight-loss friendliness (composite index)
Energy density 0.61 kcal/g · 43% calories from protein · 0.4 g fiber · 0.6 g sugar per 100 g.
Composite of energy density (Rolls et al., 1999), protein & fiber satiety, minus sugar. A calculated heuristic — ranks satiety-per-calorie, not a clinical measure.
Dietary load (calculated from USDA values)
Potential renal acid load. Positive = acid-forming, negative = alkaline-forming.
Sodium-to-potassium ratio: 0.40 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.