The gap between what most women eat and what they need is around four to seven grams. That is one addition, not a new diet, and it is the reason this is worth doing at all.
Here are the cheapest ways to find five grams. Pick one. Stack a second once the first has become automatic.

Half a tin of legumes into what you are already cooking
Around 5g, and it is the single easiest one on this list.
Chickpeas into a curry or a salad. Lentils into a pasta sauce, a bolognese or a soup. Cannellini beans into anything tomato based. Black beans into tacos or a mince.
It does not change the dish much, it stretches the meal, and a tin costs about a dollar. Rinse them first, since a good deal of the sodium sits in the liquid.
A tablespoon of chia
Around 5g, and you will not taste it.
Into yoghurt, into porridge, into a smoothie. If you leave it a few minutes in something wet it will thicken, which some people like and some do not. Ground linseed does a similar job if you prefer no texture at all.
Fruit with the skin on
A pear or an apple is around 4 to 5g, and a meaningful share of that is in the skin.
Peeling fruit and vegetables is one of the most common ways people lose fibre without realising. Potatoes, carrots, cucumbers, pears, apples. Wash them and leave the skin on unless there is a reason not to.
A cup of frozen peas
Around 7g, and this one surprises people.
Tipped into pasta, rice, a curry or a soup in the last two minutes. Frozen peas are cheap, they keep indefinitely, and they are nutritionally excellent because they are snap frozen close to harvest.
Barley instead of white rice
Around 4g more per serve.
Pearl barley cooks much like rice, holds its texture better in leftovers, and works anywhere you would use rice in something saucy. It takes a bit longer, around 25 minutes, so it suits things you are already simmering.
Where Greenher fits
A serve of Greenher Daily contains 2g of fibre, which is around 8% of the Adequate Intake for women.
That is a contribution rather than a solution, and we would rather say so. It will not close a five gram gap on its own, and no powder should be doing the job that food does perfectly well and more cheaply.
What it does add is acacia fibre and green banana resistant starch, which are two fermentable fibre types that are difficult to get much of from ordinary meals. That is a different argument to volume, and it is the only one we would make.
A note on going too fast
If you are currently around 20g and you jump to 35g overnight, you will be uncomfortable. Bloating, wind, and a general sense that fibre is not for you.
It is not that fibre disagrees with you. It is that your gut bacteria need a few weeks to adjust to a larger supply, and the fermentation that produces gas settles as that population shifts.
So add one thing, give it a week or two, then add the next. And drink more water alongside it, because fibre without adequate fluid can make constipation worse rather than better.
The takeaway: You are looking for about five grams, not twenty five. Half a tin of legumes, a tablespoon of chia, fruit with the skin on, a cup of frozen peas, or barley in place of rice will each get you there. Add one at a time over a few weeks and drink more water alongside.
The science behind this post:
- Food Standards Australia New Zealand. Australian Food Composition Database. Dietary fibre content of legumes, chia seeds, pome fruit, green peas and pearl barley per common serve. foodstandards.gov.au
- National Health and Medical Research Council. Nutrient Reference Values for Australia and New Zealand: Dietary Fibre. Adequate Intake and Suggested Dietary Target by sex and life stage. nrv.gov.au
- National Health and Medical Research Council. Australian Dietary Guidelines. Guidance on increasing fibre intake gradually and maintaining adequate fluid intake. eatforhealth.gov.au