I've never seen this advice for 30 plant based food but it's v interesting as I often wonder about us. I have been known to count up our fresh fruit and veg variety of a week and usually get to around 20. I do not usually include things like beans, rice, pasta, bread etc so I think I am probably close to 30....
So in this house:
Breakfast - usually weetabix (assume that counts) "sweetened" with a nutty granola (so technically a few more more, but let's count it as oats and nuts). DS adds raisins to his. Toast is consumed at least a few times a week. So minimum 4 or 5 for breakfast?
Fruit - fruit as a snack is consumed daily and over a week we will eat strawberries, blueberries, apples and bananas at a minimum. Satsumas, blackberries, oranges are also popular choices. let's say minimum 4 but probably more likely 6.
Potatoe and rice are regular carbs. Pasta about once a week. So 3?
At least half our meals involve a pile of steamed veg on the side. In summer, we have salads often. In my fridge/veg rack/freezer right now on this basis that will be eaten alongside or as standalone meals are: carrots, cauliflower, tenderstem broccoli, baby corn, spring onions, peppers, cucumber, lettuce, avocado, peas, butternut (11)
Onions and tomatoes are regularly used in meals, usually fresh. Sometimes tinned tomatoes (2)
Garlic and ginger also used weekly (1?)
Baked beans consumed at least weekly (1).
Peanut butter is practically a good group in itself around here. (1)
In winter I usually make a lot of stews and casseroles which usually include lentils or chickpeas or beans. In summer, we do more elaborate salads with a wider variety of additions. So we're close on an average week and just by making sure to have the higher end of fruit/veg variety and/or adding a few additional nuts/legumes we'd probably make it quite well.
We do seem to have good gut health! 