30 Plants a Week — Testing the Triple 30 in My Casa Adora Kitchen

YouTube knows my search history. A podcast featuring Dominique Ludwig appeared in my recommendations this week — King's College clinical nutritionist, Sunday Times number-one author, and creator of a framework called the Triple 30 that stopped me mid-scroll. Thirty grams of protein per meal, thirty grams of fibre per day, thirty unique plants a week. I'd been tracking fibre for five days already. The plants I hadn't even considered. So I went back and counted.

What Is the Triple 30?

The concept of 30 plants a week comes from Professor Tim Spector and the ZOE research programme — the idea that gut microbiome diversity is associated with the variety of plants we eat, and that eating thirty or more different plant foods per week is associated with greater microbiome diversity. Dominique Ludwig, in her debut book No-Nonsense Nutrition, builds on this with two additions: thirty grams of protein per meal and thirty grams of fibre per day. Together they form her Triple 30 — a framework she has used with thousands of patients over thirty years of clinical practice.

No fads. No injections. No powders. Just food, properly constructed.

I had five days of data from the Casa Adora kitchen. I decided to test it.

The Fibre — The Hardest of the Three

Thirty grams of fibre per day sounds straightforward until you start measuring. UK adults are advised to consume 30g daily and typically consume around 20g or less. I thought I was doing better than that. Over five days, I found out.

Four of the five days hit the target. Saturday was the best — 46g — overnight oats, a wholemeal baguette, two beetroot and black bean burgers and an apple. Sunday was 34g: a frozen burger at brunch with kiwi, then a four bean salad in the evening with white beans, black beans, chickpeas, altramuces, bulgur wheat and tinned mussels. Friday came in at 32–35g — lentil dhal with pearl barley and bulgur wheat, a combination that does serious fibre work in a single bowl. Monday was 28–29g, just under — the one day without legumes at dinner.

Thursday was 27g, the only clear miss.

The pattern is consistent and instructive: legumes at two meals and the target is hit with room to spare. Skip them at dinner and it falls short by five to eight grams. The Casa Adora kitchen is well set up for fibre — pulses, wholegrains, vegetables — but it requires deliberate construction, not accident.

One thing worth saying honestly: when you push fibre intake up significantly and start eating thirty or more plants a week, your gut notices. The first few days brought some bloating and flatulence — nothing dramatic, but noticeable. By day five it was easing. The gut microbiome needs time to adjust to a new workload, and that adjustment period is normal and temporary. If you're starting from a typical UK intake of around 20g a day, don't be put off by the first week.

The full collection of high-fibre recipes is in the Gut Health Recipes hub.

The Plants — The Easiest of the Three

This is where the Casa Adora kitchen surprised me. Thirty plants a week sounds ambitious until you count properly — and the rules are more generous than you might expect. Every different vegetable, fruit, legume, wholegrain, herb, spice, seed and nut counts as a separate plant. Olive oil counts. Pimentón counts. The cumin in the dressing counts.

Sunday alone came to at least fifteen unique plants: black beans, white beans, chickpeas, altramuces, beetroot, tomatoes, kiwi, bulgur wheat, red onion, garlic, parsley, lemon, lime, cumin and pimentón. One day, fifteen plants, without any particular effort.

I tracked all three Triple 30 metrics across eight days. Protein tracking came in later — the first five days were fibre and plants only.

The weekly plant total was well past thirty before Wednesday — almost certainly before the week was half done. The question of how to eat 30 plants a week gets easier once you understand what counts. The Mediterranean way of eating — market vegetables, dried pulses, fresh herbs, a well-stocked spice rack — gets you there without a checklist. It is simply what the food looks like when you cook properly.

That is not a boast. It is the point Spector, Ludwig and a growing body of gut health research are all making: traditional food cultures were doing this long before the microbiome had a name.

The Protein — The Audit

Ludwig's target is 30g of protein per meal. I said I'd come back with the data. Here it is.

Protein tracking came in later than fibre and plants — the first five days were gut health metrics only. The audit proper ran across the final three days of the eight-day log, with Thursday 10 Sep used as the full audit day. Daily totals across those three days ranged from around 50g to over 111g — which suggests the kitchen is not short of protein overall. But daily totals are not the test. Per meal is the test, and that tells a more interesting story.

Dinner usually gets there. A chicken breast delivers around 45g alone. The four bean salad came in at around 30g. On days built around fish, eggs and legumes at dinner the target is met — but not every dinner qualifies.

Lunch is variable and often gets close, rather than reliably reaching the 30g per meal target.

Breakfast is the gap. Overnight oats with kefir delivers around 10–12g of protein. Against a 30g per meal target, that is the one consistent shortfall across all five days. The fix is straightforward — Greek yoghurt alongside, or a couple of eggs — but it requires the same deliberate construction that the fibre target demands.

The Thursday audit confirmed it precisely. Breakfast — overnight oats with yoghurt, seeds and dried fruit — came in at around 19g. Lunch, two buckwheat sourdough sandwiches with tinned mackerel, hummus and chicken breast, both with sunomono on the side, delivered around 45g. Dinner — chicken breast in black bean sauce with organic black beans, pearl barley, carrots and courgette — another 45g. Day total: approximately 112g. The gap is not the day. The gap is breakfast, every time.

The conclusion, then: the Triple 30 is three different disciplines. Fibre needs intention. Plants take care of themselves. Protein needs attention at breakfast specifically — and that may be where many people find the same gap.

What the Triple 30 Actually Means for a Real Kitchen

Ludwig's framework isn't a diet plan. It is a way of understanding what a well-constructed plate does — and why the food cultures that built their eating around pulses, wholegrains, vegetables and fermented foods were, as it turns out, right all along.

The Casa Adora kitchen doesn't follow a plan. It follows the market, the season, the store cupboard, and thirty-odd years of cooking instinct shaped by France, Lancashire, Cumbria and rural Andalucía. The Triple 30 gives that instinct a language. The fibre needs deliberate attention. The plants look after themselves. The protein needs its most deliberate attention at breakfast.

The recipes that underpin all of this are in the Gut Health Recipes hub — fermented foods, legumes, wholegrains, high-fibre soups, and the dishes that have been doing this work for centuries without knowing it had a name.

There's a histamine dimension to this too — some gut bacteria actively help break down histamine, while others produce it. A diverse microbiome is part of what keeps histamine in balance. I've written about this in more detail in Histamine Intolerance Symptoms — A Chef's Take on Fermented Foods.

FOOTNOTES

This post references Dominique Ludwig's Triple 30 plan and Professor Tim Spector's 30 plants a week research, originally published in the American Gut Project, with practical guidance at ZOE. UK fibre guidance from the British Nutrition Foundation.

Find more recipes and food adventures here.

Wonky photos, proper food, genuine adventures — The Flexible Chef

Professor Tim Spector's 30 plants a week research, originally published in the American Gut Project, with practical guidance at ZOE.