Levels vs Zoe vs Nutrisense (2026)

Levels, Zoe and Nutrisense are the three CGM programmes nutrition-focused users compare when expert layers and methodological depth matter. Three different philosophies on the same input (CGM data): Levels bets on app intelligence and continuous depth, Zoe runs a multi-biomarker scientific reset, Nutrisense pairs continuous CGM with a registered dietitian.

Head-to-head breakdown

Continuous CGM use

Levels and Nutrisense: continuous Dexcom G7 for as long as you subscribe. Zoe: 2-week Libre phase only. Levels and Nutrisense tie; Zoe is bounded.

Tie

Sensor accuracy

Levels and Nutrisense both run Dexcom G7 (MARD ~8.2%). Zoe runs Libre (MARD ~9–11%). Levels and Nutrisense tie on hardware.

Tie

App insight depth

Levels has the deepest meal-impact engine — AUC decomposition, food-by-food ranking, time-in-range views. Nutrisense competent; Zoe lighter on glucose but unique multi-biomarker.

Levels

Human coaching

Nutrisense: registered dietitian for every subscriber. Levels and Zoe: app-only by default. Nutrisense wins on human layer.

Nutrisense

Scientific lineage

Zoe: PREDICT-1 and PREDICT-2 studies from King’s College London (Tim Spector), published in Nature Medicine. Levels has a credible medical board; Nutrisense has RD involvement.

Zoe

Multi-biomarker view

Zoe is the only programme combining CGM with gut microbiome and blood biomarkers. Levels and Nutrisense are CGM-only.

Zoe

Personalised food rankings

Zoe’s food-ranking model is the programme centrepiece. Levels and Nutrisense show meal impact but do not rank foods against your physiology long-term.

Zoe

Year-1 cost

Zoe: ~$1,250 (£300 setup + £60/mo). Levels: ~$2,388 ($199/mo). Nutrisense: ~$3,500 ($280–310/mo with RD). Zoe cheapest year 1.

Zoe

The short version

Three nutrition-focused CGM programmes that look adjacent but solve different jobs. Levels for continuous app-driven insight. Zoe for a multi-biomarker scientific reset. Nutrisense for ongoing CGM with a human dietitian on top.

When Levels is the right pick

If you treat CGM as a self-experimentation instrument — running meal protocols, tracking time-in-range, iterating week by week — Levels is the right shape. The deepest app insights on the most accurate sensor; the $199/month is the cost.

When Zoe is the right pick

If you want personalised nutrition grounded in real published science and a one-time multi-biomarker reset (CGM + microbiome + blood) followed by ongoing food rankings is what you want, Zoe is the right shape. The PREDICT studies are the scientific anchor.

When Nutrisense is the right pick

If accountability through a registered dietitian working through your data weekly is the value, Nutrisense is the right shape. Same Dexcom G7 hardware as Levels; the difference is the human coaching layer.

Common questions

Which is best — Levels, Zoe or Nutrisense?

They solve different problems. Levels for ongoing CGM as a self-experimentation instrument. Zoe for personalised nutrition based on a multi-biomarker model (CGM + microbiome + blood). Nutrisense for ongoing CGM with a registered dietitian. Pick on which job is deciding.

Does Zoe include ongoing CGM?

No — Zoe’s CGM phase lasts two weeks, then ends. The programme is the personalised food-ranking model, which you keep through the subscription. For continuous CGM, Levels or Nutrisense.

Which has the most scientific backing?

Zoe, on published trial evidence — the PREDICT studies in Nature Medicine. Levels has a credible medical advisory board but no equivalent published trial series. Nutrisense has registered-dietitian involvement, not a published trial base.

Is Nutrisense worth the premium over Levels?

Only if you would actually engage with the registered dietitian weekly. The Dexcom G7 hardware is identical to Levels; what you pay for is the human coaching layer. For users who would skip the RD message, Levels at $80–$110/month less makes more sense.

Can I do two of these?

Some users start with Zoe for the multi-biomarker reset, then transition to Levels or Nutrisense for ongoing CGM. The three layer cleanly because they emphasise different things — multi-biomarker science (Zoe), continuous app depth (Levels), human coaching (Nutrisense).