What SlimFast does

SlimFast is a privately held US weight management and meal replacement brand founded in 1977 by Daniel Abraham, now operated through KSF Acquisition Corporation headquartered in Palm Beach Gardens, Florida. The company sells meal replacement shakes, shake and smoothie mixes, snack bars, and lifestyle support products organized into four core lines: Original/Calorie Control, High Protein (20g protein, 1g sugar formulations), Delights (sweet snacks and meal bars), and Lifestyle (including hydration mix). Sub-brands extend the portfolio into Keto, Diabetic Weight Loss, Coffee House smoothies/shakes, and SlimCafe coffee beverages, with bundles, kits, and accessories rounding out the assortment. The company's underlying product technology centers on formulated meal replacements providing up to 4 hours of hunger control and a structured SlimFast Plan (one sensible meal, two meal replacements, three snacks) that is claimed to deliver 1–2 lbs of average weekly weight loss.

SlimFast operates a product-led go-to-market model combining direct-to-consumer e-commerce via slimfast.com and shop.slimfast.com (powered by WorldPantry.com) with extensive distribution through grocery chains, drugstores, mass merchandisers, and online marketplaces including Amazon. Marketing relies on the SlimFast Together community/ambassador program, influencer partnerships, social media engagement on TikTok and Facebook, email, and content marketing including recipes and success stories. Customer segments are horizontal—primarily weight loss seekers, with secondary keto and diabetic consumers—and pricing is set through the online store and retail partners. The brand is BBB accredited and supported by a dedicated mobile community app.

Ownership of SlimFast was restructured in 2025 following Glanbia PLC's divestiture: the US business was acquired by Heartland Food Products Group (maker of Splenda) in September 2025, and the UK and European operations were acquired by Supreme PLC for approximately £20.1 million (€23 million) in October 2025, with Supreme intending to modernize the brand and expand its product lines and distribution. SlimFast is now effectively a split regional business under two separate parent owners, continuing to operate as an active brand globally.

Name

SlimFast

Legal name

KSF Acquisition Corporation

Website

https://slimfast.com

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

51–100 employees

Short description

SlimFast is a 45+ year-old US weight management brand selling meal replacement shakes, snack bars, and protein products through DTC e-commerce and major retail chains, serving weight loss, keto, and diabetic consumer segments.

Ownership category

akta.pro rank

Product category

Weight Management Meal Replacement

NAICS

Food (Health) Supplement Retailers (456191), Other Specialty Food Retailers (44529), Diet and Weight Reducing Centers (812191)

SIC

Food And Kindred Products (2000), Miscellaneous Food Preparations & Kindred Products (2090)

akta.pro primary industry

Weight Management & Meal Replacement Foods Manufacturing (Shakes, Bars, Portion-Controlled Meals) (AFAKAJAF)

akta.pro secondary industries

Health/Protein Snack Bars Manufacturing (AFAKAIAN), Functional Foods & Supplement Formats (Gummies, Chews, Powders, Shots) (CRADAGAI), Weight Management & Metabolic Supplements (CRADAGAG), Sports & Performance Nutrition Foods Manufacturing (Protein Foods, Energy Gels/Bars) (AFAKAJAE)

Keywords

• Meal replacement shakes
• Weight management products
• Protein snack bars
• Keto diet foods
• Calorie controlled nutrition

Headquarters

HQ city

Palm Beach Gardens

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Marketing or Sales, Operations, Technology or R&D, Personnel

Revenue model

1. Meal Replacement Products: SlimFast generates revenue through the sale of meal replacement shakes, powder mixes, snack bars, and related weight management products. Products are sold through direct-to-consumer e-commerce, major retail chains, drugstores, and e-commerce marketplaces.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

SlimFast designs, markets, and sells a portfolio of meal replacement shakes, powder mixes, snack bars, and lifestyle nutrition products built around its structured SlimFast Plan for weight management. The portfolio spans Original/Calorie Control shakes, High Protein shakes and smoothie mixes, Delights snack bars, Keto and Diabetic-formulated products, coffee-flavored beverages, hydration mixes, and supporting accessories and starter bundles. Products are sold via the brand's own e-commerce site, retail chains, drugstores, mass merchandisers, and online marketplaces.

Product overview

SlimFast is a weight management and meal replacement brand offering a comprehensive portfolio of products centered around its core SlimFast Plan. The system is built on replacing two meals per day with SlimFast shakes or smoothies, eating one sensible meal, and indulging in three snacks. The product portfolio includes four main lines: Original/Calorie Control (shakes and shake mixes for standard calorie-controlled weight loss), High Protein (20g protein shakes and smoothie mixes for muscle support), Delights (sweet snacks and meal bars for craving management), and Lifestyle (supporting products like hydration mix). Additional specialized sub-brands include Keto Products (low-carb formulations), Diabetic Weight Loss (diabetes-specific formulations), Coffee House (coffee-flavored smoothies and shakes), Organic Greens Powder (nutritional supplement), and SlimCafe Coffee Drinks. The brand also offers bundles and kits (High Protein 14-Day Starter Kit, Variety Bundles), accessories (Shaker Bottle, Measuring Tape), and the SlimFast Together community app for diet support. Founded in 1977 in the US, SlimFast operates internationally and was acquired by Supreme PLC for its UK/European operations in 2025.

Differentiator

Problem solved

Functional benefit

Brands

• SlimFast Together: Community and support app for SlimFast users featuring coaching and group support.

Products and services

• SlimFast Original / Calorie Control
• SlimFast High Protein
• SlimFast Delights
• SlimFast Lifestyle
• SlimFast Keto Products
• SlimFast Diabetic Weight Loss
• SlimFast Essentials Shakes
• SlimFast Coffee House Smoothie Mix
• SlimFast Coffee House Shakes
• SlimFast Organic Greens Powder
• SlimFast SlimCafe Coffee Drinks
• SlimFast High Protein 14-Day Starter Kit
• SlimFast Shakes Variety Bundle
• High Protein Nutrition & Energy Variety Bundle
• SlimFast Shaker Bottle
• SlimFast Measuring Tape

Quantifiable outcome

• Average weight loss of 1-2 lbs per week when following the SlimFast Plan (one sensible meal, two meal replacements, three snacks, regular exercise)

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Three partnerships are on record, tiered core and minor.

• Supreme PLCcoreChannel Partner/ Reseller/ Distributor · 20 October 2025Supreme PLC, a Manchester-based consumer goods group, acquired the UK and European business of SlimFast from Glanbia PLC for approximately £20.1 million (€23 million). The acquisition integrates SlimFast into Supreme's Drinks & Wellness division, with plans to modernize the brand and expand its product lines and distribution channels.
• Heartland Food Products GroupcoreChannel Partner/ Reseller/ Distributor · 17 September 2025Heartland Food Products Group, the maker of Splenda, acquired the US business of SlimFast from Glanbia. This acquisition separated the US rights from the UK/European rights which were acquired by Supreme PLC.
• Glanbia Performance NutritionminorStrategic or Co-development PartnerSlimFast was previously part of the Glanbia Performance Nutrition family of brands. Glanbia sold the brand to Heartland Food Products Group (US) and Supreme PLC (UK/Europe) in 2025. The sustainability page still references Glanbia's sustainability commitments.

Scale indicators2 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Herbalife: Global nutrition company offering meal replacement shakes, protein powders, and weight management programs through direct selling. Most directly comparable to SlimFast by product category, target consumer, and meal-replacement positioning.
• Nutrisystem: Direct-to-consumer weight management brand offering portion-controlled meals, shakes, and bars under structured diet programs. Competes head-to-head with SlimFast in the calorie-controlled meal replacement category.
• Jenny Craig: Structured weight-loss program combining meal replacements, frozen meals, and one-on-one coaching. Closely comparable to SlimFast in target use case (calorie-controlled weight loss) and product format.
• Premier Protein: High-protein shake and bar brand with broad retail distribution in grocery, club, and convenience channels. Directly comparable to SlimFast's High Protein line on product format, protein content claims, and channel mix.
• Atkins (Simply Good Foods): Low-carb nutrition brand offering shakes, bars, and meal products targeting keto and carb-conscious consumers. Overlaps with SlimFast's Keto and calorie-controlled lines on consumer use case and product format.

Broad incumbents

• Abbott (Ensure): Abbott Nutrition's Ensure is a leading nutritional shake brand sold across retail and medical channels. Comparable to SlimFast on product format and meal-replacement positioning, but with a much broader nutritional and clinical portfolio.
• Nestlé Health Science: Global nutrition and meal replacement portfolio (including Boost and Optifast) competing in the same category as SlimFast. Comparable on product category but operates at much broader scale and across medical nutrition channels.

Emerging players

• Orgain: Plant-based nutritional shake and protein powder brand with strong retail and DTC presence. Targets the same consumer occasions as SlimFast but differentiates on clean-label, plant-based positioning relevant to younger buyers.
• Noom: Digital weight-management platform using behavior change coaching with optional meal and supplement offerings. Represents the emerging digital-first competitive vector against traditional CPG meal-replacement brands like SlimFast.

Others

• Glanbia Performance Nutrition: Former parent of SlimFast and owner of Optimum Nutrition and Isopure protein brands. Relevant as the prior strategic owner with direct insight into SlimFast's cost structure, retail relationships, and category dynamics.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• TikToktiktok.com/@slimfast
• Xx.com/slimfast
• Facebookfacebook.com/slimfast
• LinkedInlinkedin.com/company/slimfast-

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SlimFast