Nutritional drink or shake, ready-to-drink, sugar free (Slim Fast)
Common food
Photo: Wikipedia
This is a smooth, creamy, ready-to-drink meal replacement shake designed for weight management, with a classic vanilla or chocolate flavor profile. Its texture is light yet satisfyingly thick, avoiding the chalkiness of some protein drinks. Nutritionally, it's a low-calorie powerhouse, packing a solid 3.32g of protein per 100g to help maintain muscle while cutting calories.
Calorie split: 22% protein · 50% carbs · 28% fat
↓ Full nutrition💚 Why it's loved
People love its no-fuss convenience and predictable, sweet flavor that feels like a treat rather than a diet. It's a cultural staple in the world of structured weight loss plans, offering a quick, reliable option for busy mornings.
⚠️ Watch-outs & how to enjoy it better
Some may experience digestive discomfort or bloating from the artificial sweeteners and fiber blend. To counteract this, start with a half-serving to assess tolerance and always drink it with plenty of water throughout the day. Those watching sodium intake should also check the label, as some formulations can be higher in salt.
Key benefits
- Low-calorie, portion-controlled meal replacement
- Good source of protein for satiety
- Fortified with vitamins and minerals
- Convenient for on-the-go weight management
- High in fiber to aid digestion
🍽️ Popular dishes
🌍 Where it's eaten
💡 Did you know?
The original SlimFast formula was developed in 1977 by a scientist who was trying to create a nutritionally complete liquid food for his father, who had trouble eating solid food after surgery.
Full nutrition (USDA data · scales with serving)
| Water | 85.7 g |
| Energy | 57.0 kcal |
| Protein | 3.3 g |
| Total lipid (fat) | 1.9 g |
| Carbohydrate, by difference | 7.7 g |
| Fiber, total dietary | 1.6 g |
| Total Sugars | 6.0 g |
| Calcium, Ca | 161 mg |
| Iron, Fe | 0.87 mg |
| Magnesium, Mg | 45.0 mg |
| Phosphorus, P | 161 mg |
| Potassium, K | 193 mg |
| Sodium, Na | 68.0 mg |
| Zinc, Zn | 0.72 mg |
| Copper, Cu | 0.01 mg |
| Selenium, Se | 5.7 ug |
| Vitamin C, total ascorbic acid | 19.4 mg |
| Thiamin | 0.17 mg |
| Riboflavin | 0.19 mg |
| Niacin | 2.3 mg |
| Vitamin B-6 | 0.23 mg |
| Folate, total | 39.0 ug |
| Folic acid | 39.0 ug |
| Folate, food | 0.00 ug |
| Folate, DFE | 66.0 ug |
| Choline, total | 14.8 mg |
| Vitamin B-12 | 0.68 ug |
| Vitamin B-12, added | 0.68 ug |
| Vitamin A, RAE | 170 ug |
| Retinol | 170 ug |
| Carotene, beta | 0.00 ug |
| Carotene, alpha | 0.00 ug |
| Cryptoxanthin, beta | 0.00 ug |
| 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) | 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 | 0.54 g |
| SFA 4:0 | 0.01 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 | 0.28 g |
| SFA 18:0 | 0.13 g |
| Fatty acids, total monounsaturated | 0.97 g |
| MUFA 16:1 | 0.01 g |
| MUFA 18:1 | 1.0 g |
| MUFA 20:1 | 0.02 g |
| MUFA 22:1 | 0.00 g |
| Fatty acids, total polyunsaturated | 0.32 g |
| PUFA 18:2 | 0.31 g |
| PUFA 18:3 | 0.15 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 |
| Cholesterol | 3.0 mg |
FAQ
Can I use this as my only source of nutrition?
It's designed as a meal replacement for one or two meals per day, not for all meals. A balanced diet with whole foods is essential for long-term health and nutrient diversity.
Is the sugar alcohol in it safe?
Sugar alcohols like maltitol are generally recognized as safe but can cause gastrointestinal issues like gas or diarrhea in some people, especially in large amounts. Starting with a smaller portion is wise.
How does it differ from a regular protein shake?
A meal replacement shake like SlimFast is formulated to be nutritionally complete for a meal, with added vitamins, minerals, and a balance of macros. A protein shake primarily focuses on delivering protein and is often used as a supplement, not a full meal.
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 0.57 kcal/g · 23% calories from protein · 1.6 g fiber · 6.0 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: 0.35 (lower is better — aim for ≤ 1)
Sodium:potassium per WHO potassium guidance. Computed from USDA nutrients.