How the Weight Impact Score Works
By Dino Pohilj, Founder, RealFoods
Calorie counting asks the wrong question. Two meals with identical calorie totals can produce wildly different metabolic outcomes, a fact established by decades of glycaemic-index research and reinforced by recent continuous-glucose-monitor studies. The Weight Impact Score replaces that flawed measure with a single number you can act on at the table: 1-10, where lower is better for fat loss.
The 1-10 Scale Explained:
- 1-3
Low Impact
Supports fat loss. Low blood sugar impact. Your body can remain in a fat-burning state.
- 4-6
Moderate Impact
Maintains your current weight. Best paired with protein or a walk.
- 7-8
High Impact
Likely triggering fat storage. Consider a swap.
- 9-10
Very High Impact
Potent drivers for intensive weight gain. Portion size matters most here.
This is not a calorie count. It measures hormonal impact, not raw energy content, and that distinction is what makes it predictive of weight change instead of merely descriptive of intake.
Dr. Jason Fung argues this point clinically: a meal's hormonal signature, not its calorie total, demonstrates what the body will actually do with the energy. We cite his work because it establishes the mechanism the Weight Impact Score operationalises at the table.
What Goes Into the Score
When you scan a meal, the model examines four signals, the same variables that peer-reviewed glycaemic-response research has demonstrated dominate post-meal insulin behaviour. Dr. Benjamin Bikman's research at BYU establishes the macronutrient and carbohydrate-quality drivers; Jessie Inchauspé's glucose-curve data sources the fibre and food-ordering signals. We weight them as follows:
- The macronutrient ratio: How protein, fat, and carbohydrates are balanced.
- Carbohydrate quality: Whether the carbs are complex and whole-food based, or refined and fast-acting.
- Fibre content: Fibre physically slows down digestion, actively blunting blood sugar spikes.
- Fat and protein timing: Fat and protein slow gastric emptying, acting as a net that stabilizes blood sugar.
Scores in Practice
Here's how those calculations play out with real, everyday meals:
Ready to stop guessing what to eat?
What It Doesn't Replace
We want to be direct: the score is highly accurate for predicting fat-storage mechanisms, but it is not a medical device and we do not claim it replaces clinical judgement.
- It doesn't replace a doctor's advice.
- It doesn't account for complex medical conditions, extreme allergies, or specific medication interactions.
- It doesn't measure micronutrients (vitamins, minerals). You can have a very low score and still need to eat your vegetables for long-term health.
Curious to read more? See how the score compares to the problem with calorie counting, or explore our frequently asked questions.
