plentii.

Diet-agnostic UK food guide

Eat well in the UK without picking a tribe.

Every diet teaches a different metric. Calories, syns, points, macros, net carbs, units. None of them is the truth on its own. Plentii translates between all of them โ€” so you can stop counting someone else's currency and start understanding the food.

Try the tools What we mean by good eating
๐ŸŒ

One banana

15 metrics. One food. This is what plentii does.

Calories 105 kcal
Syns (SW) 5
WW SmartPoints 0
Personal Pts 0
Protein 1.3 g
Fat 0.4 g
Carbs 27 g
Net carbs 24 g
Fibre 3.1 g
Sugar 14 g
GI 51
GL 12
NHS portions 1 ร— 5-a-day
Satiety idx 118
Diabetic exch. 2

15 metrics, translated.

Every diet teaches one. We cover all of them.

01
Calories
Universal ยท NHS ยท MyFitnessPal
02
Syns
Slimming World
03
WW Points
Weight Watchers (legacy)
04
SmartPoints
WW current
05
Zero Points
WW free foods
06
Macros
IIFYM ยท gym ยท flexible
07
Net Carbs
Keto ยท low-carb
08
Alcohol Units
UK NHS guidance
09
NHS Portions
Eatwell Plate
10
Exchanges
Diabetic management
11
GI / GL
Blood-sugar response
12
Satiety Index
Hunger-led eating
13
Noom Colour
Green / yellow / red
14
Zone Blocks
Zone Diet
15
Volumetrics
Energy density

Free tools.

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TDEE Calculator

Maintenance calories, deficit target, surplus target. UK stones-and-pounds inputs.

Calculate →
โ‡„

Syns โ†’ Calories

Convert Slimming World syns to kcal. Learn what the conversion can and can't tell you.

Calculate →
โ‡„

WW Points โ†’ Calories

Works for ProPoints, SmartPoints, and Personal Points. All three eras.

Calculate →
P/F/C

Macros Calculator

Protein-first targets for cut, maintain, or lean bulk โ€” with practical UK food examples.

Calculate →
BMI

BMI Calculator UK

Stones-and-pounds inputs. NHS categories. With the limits of BMI explained honestly.

Calculate →
U

Alcohol Units

Pints, glasses, shots โ€” units and calories together. Track a week against NHS guidance.

Calculate →

Migration bridges.

Leaving a programme? We'll translate your knowledge so nothing gets wasted.

Slimming World → Calorie counting

Slimming World to calorie counting

What transfers, what doesn't, and how to bridge the gap.

WW → Calorie counting

WW to calorie counting

What transfers, what doesn't, and how to bridge the gap.

Keto → Flexible eating

Keto to flexible eating

What transfers, what doesn't, and how to bridge the gap.

By life stage.

Nutrition shifts as you age. These guides match the evidence to the decade.

Women's nutrition

Read →

Men's nutrition

Read →

Over 40s

Read →

Over 50s

Read →

Pick your starting point.

No wrong door. Every path leads to the same data.

What we don't do.

No proprietary metric.

We translate existing ones. We don't lock you into a sixteenth.

No shame language.

No naughty foods, no guilt-free anything, no cheat days.

No before-and-afters.

Bodies aren't marketing assets. We don't sell transformation.

No paywall on the data.

Food database, calculators, migration guides โ€” free. Always.

Questions.

Is plentii a diet?
No. Plentii is a translator. We explain every dieting metric, convert between them, and give you data to make your own decisions. We don't sell a programme, a score, or a plan.
Is it really free?
The tools, food data, guides, and migration content are free. We fund the site through affiliate commissions on products we genuinely recommend, clearly disclosed.
Are you affiliated with Slimming World or WW?
No. Plentii is independent. We are not endorsed by, funded by, or commercially connected to any diet programme.
Who writes the content?
A named editorial team with conflicts disclosed. Every page is dated and updated when the evidence changes.