Book Review: Salt Sugar Fat

After hearing glowing recommendations for Salt Sugar Fat: How the Food Giants Hooked Us by Michael Moss on the Open Food Facts forum, I picked up the book with a simple question in mind:

How can someone write 400 pages about three basic ingredients — salt, sugar and fat?

Three months later, after slowly working my way through the book, the answer became clear. These three ingredients are not just kitchen staples. In the hands of the trillion-dollar processed food industry, they have been carefully engineered to make foods convenient, irresistible, and hard to stop eating.

Reading the book was both validating and chilling. Validating, because many of us already suspect something strange about ultra-processed foods. Chilling, because Moss reveals just how deliberately these products are designed.

Although the book focuses on American companies, the lessons apply globally. Multinational food giants routinely transfer successful strategies from one country to another.

Take the example of the iconic "creme sandwich biscuit" Oreo which has 60-80+ active fat-laden variations. When growth slowed in the U.S., its parent company expanded aggressively into emerging markets like India. After acquiring Cadbury, the company used Cadbury’s massive distribution network to introduce Oreos to Indian consumers in 2011, followed soon after by products like Tang.

The central theme of Salt Sugar Fat is simple:

The food industry has learned how to “weaponise” sugar, fat and salt to maximise pleasure and drive overconsumption.

Sugar delivers quick dopamine hits, fat creates addictive mouthfeel, and salt amplifies flavour and shelf life.

Across the book, Moss shows how companies systematically engineer the "bliss point" — the precise level of sweetness, saltiness or richness that keeps you reaching for the next bite.

Below is a chapter-by-chapter guide to the tricks the industry uses, what consumers should watch for, and the key takeaways.

Part One: Sugar

Chapter 1 – Exploiting the Biology of the Child

The trick: Children naturally prefer sweeter foods than adults. Food companies discovered this early and began designing products that match kids’ higher bliss point for sugar. Hook them young, and you create lifelong customers.

Watch out for: 

• Sweetened yogurts marketed to children
• Breakfast cereals loaded with sugar
• “Fruit snacks” that are basically candy

Learning: The industry doesn’t just sell to children — it designs products around their biology.

Chapter 2 – How Do You Get People to Crave?

The trick: Food scientist Howard Moskowitz pioneered mathematical modelling to find the perfect bliss point — the precise level where people love a product the most. Add more sugar beyond that point and people actually like it less.

Watch out for: Products that taste uncannily "just right." Think of sodas, soups, sauces or pizzas that feel impossible to stop eating.

Learning: Craving isn’t accidental. It is scientifically engineered.

Chapter 3 – Convenience with a Capital “C”

The trick: Processed foods were sold as a form of liberation from cooking. But many convenience foods rely heavily on added sugar to mask the flaws of industrial processing.

Watch out for: “Instant” foods like:

• powdered drinks
• dessert mixes
• toaster pastries

Many hide several teaspoons of sugar per serving.

Learning: Convenience often comes with a hidden sugar tax.

Chapter 4 – Is It Cereal or Candy?

The trick: Breakfast cereal companies gradually pushed sugar levels higher while marketing their products as healthy. Some cereals have sugar levels closer to candy than to traditional breakfast foods.

Watch out for: Cereals where:

• sugar appears among the first ingredients
• the front label says “whole grain” but the nutrition label shows 10g+ sugar per serving

Learning: The line between breakfast and dessert has been deliberately blurred.

A fun cultural reference here is the Netflix film Unfrosted, which dramatizes the rivalry between Kellogg Company and Post Holdings during the race to invent the Pop-Tart.

Chapter 5 – “I Want to See a Lot of Body Bags”

The trick: Companies aggressively marketed sugary products to children through television advertising, fully aware of the health risks. Internal discussions sometimes acknowledged the damage while continuing the strategy.

Watch out for

• cartoon mascots selling sugary snacks
• soft drinks replacing milk or water in children’s diets

Learning: Marketing plus sugar equals “stomach share” before kids even know what they’re eating.

Chapter 6 – A Burst of Fruity Aroma

The trick: Fruit drinks often contain little real fruit. Instead, companies use aroma chemistry to create the illusion of fresh fruit flavour.

Watch out for: “Fruit drinks” where juice content is tiny but sweetness is high.

Learning: Smell and taste can be engineered separately to boost the bliss point.

Part Two: Fat

Chapter 7 – That Gooey, Sticky Mouthfeel

The trick: Fat creates what food scientists call mouthfeel — the creamy, rich texture that feels comforting. Products like snacks and chips are designed to melt quickly in the mouth, creating what researchers call vanishing caloric density.

Watch out for: Snacks like cheese puffs like Cheetos that seem light but are calorie-dense.

Learning: Your brain thinks the food disappeared… so it keeps asking for more.

Chapter 8 – Liquid Gold

The trick: Instead of real cheese, companies developed processed cheese products made from oils, emulsifiers and additives. These mimic the taste and melt of cheese at lower cost.

Watch out for: Labels that say “cheese product” instead of cheese.

Learning: Fat became something that could be manufactured and manipulated, not just extracted from food.

Chapter 9 – Lunchtime Is All Yours

The trick: Convenience meals for kids combine salt + sugar + fat in a single package. Each component triggers a different pleasure response.

Watch out for: Packaged “lunch kits” that include:

• crackers
• processed meat (or generally any processed food)
• sweet drinks

Learning: Stacking the three ingredients together creates a perfect craving matrix.

Chapter 10 – The Message the Government Conveys

The trick: Food companies lobby heavily to influence government nutrition guidelines. Policies often become weaker under industry pressure.

Watch out for: Dietary recommendations that seem vague or inconsistent.

Learning: Public health advice is sometimes shaped by corporate lobbying.

Chapter 11 – No Sugar, No Fat, No Sales

The trick: When companies remove fat, sales drop. So they quietly increase sugar. When they reduce sugar, fat or salt often goes up.

Watch out for: Labels that use "health halos" like:

• “low-fat”
• “light”
• “100-calorie pack”

Learning: The salt-sugar-fat triangle is rarely broken.

Part Three: Salt

Chapter 12 – People Love Salt

The trick: Most sodium in modern diets comes from processed foods, not from the salt shaker. Salt enhances flavour while extending shelf life.

Watch out for: Frozen meals and packaged snacks with high sodium.

Learning: Salt is both a flavour amplifier and a preservative.

Chapter 13 – The Same Great Salty Taste

The trick: Ingredient suppliers such as Cargill engineer dozens of salt crystal shapes so food tastes saltier with less actual sodium.

Watch out for: Products claiming “same great taste with less sodium.”

Learning: Even salt itself has been scientifically redesigned.

Chapter 14 – “I Feel So Sorry for the Public”

The trick: Internal research has long shown how strongly people respond to salt, sugar and fat combinations. Yet companies rarely move away from these formulations because sales depend on them. 

Watch out for: Reduced-salt products where sugar or fat quietly increases.

Learning: The bliss-point cycle keeps repeating. Big Food knows the biological outcome, yet they continue to market these products as signs of "modernity" and "success."

Final Takeaway

The biggest insight from the book is surprisingly simple.

Many ultra-processed foods are not just food.

They are carefully engineered formulations designed by teams of scientists, marketers and flavour chemists to maximise consumption.

If moderation feels difficult with these foods, it’s not because of weak willpower.

It’s because the products were designed to override it.

Understanding that is the first step to making better food choices.