A 14-day gluten-free plan & ten easy swaps

How the fortnight is built

Built to lower LDL

A heart-healthy plan is not just one that avoids harm; this one is built to push LDL cholesterol down, using the combination the Portfolio diet trials tested (the heart diet chapter covers them, and the stacking effect, in its Portfolio section). Four of the five elements are in the fortnight as written, and the fifth is one purchase away:

• Low saturated fat: about 7.3% of energy across the fortnight, at the 7% NICE advises for people at raised cardiovascular risk, and well under the 10% general UK limit. This is the single biggest dietary lever on LDL. The main changes that got it there: 0% Greek yoghurt, turkey breast rather than thigh mince, chicken breast, and egg whites in the omelette.
• Soluble fibre: psyllium every bowl day, beans or lentils most days, gluten-free oats on training mornings; fibre averages about 30 g a day.
• Soya: a tofu and edamame stir-fry, and edamame in the poke bowl.
• Nuts: walnuts in the bowl, almonds, and the milled flax-and-nut mix.
• Plant sterols (optional, not in the numbers): 1.5–2.4 g a day from a fortified mini-drink or spread lowers LDL by roughly 7–10% more. Worth adding if your LDL is high; see the plant sterol card in the calculator for dose and timing.

The omega-3, counted

UK advice to eat two portions of fish a week, one of them oily, was set to deliver roughly 450 mg a day of the marine omega-3 fats, EPA and DHA: about 3 g a week. This plan puts oily fish in four times a week, the most the NHS advises for most adults, and on deliberately conservative figures delivers:

Wild or farmed salmon? Wild Alaskan salmon is an excellent choice, but not because it carries more omega-3: in the USDA-based tables, farmed Atlantic salmon comes out slightly higher, because it is fattier, and the wild species vary a lot (sockeye and coho more, pink less). Choose wild for taste, sustainability or lower contaminant levels if you prefer; for omega-3 alone, either works. Tinned wild red or pink salmon, bones included, is the cheapest way to buy it in the UK and adds calcium. The figures above are planning numbers at the conservative end; the real content varies with species, season and feed, sometimes threefold.

Two limits. Four oily-fish portions a week is the NHS upper limit for most adults, because oily fish also carries small amounts of pollutants. If you are pregnant, planning a pregnancy or breastfeeding, the limit is two: keep the two salmon dinners each week and replace the mackerel, trout and sardines with white fish or chicken. And plant omega-3 (walnuts, flax, chia, all on this plan) is good food but does not substitute for fish: the body converts very little of it to EPA and DHA. People with established heart disease who are aiming higher than the population advice should see the omega-3 card in the cholesterol calculator rather than simply adding more fish.

Buying fish you can trust

Finding good fish is harder than it should be, and the worry is reasonable. UK labels must state the species, whether it was caught or farmed, and where; read them, and use these rules:

• Wild Alaskan salmon is one of the cleanest choices on the shelf: from well-managed, MSC-certified fisheries, low in contaminants, and sold frozen and tinned in most UK supermarkets. That is why it anchors the plan.
• Farmed salmon's colour is not a dye. It comes from astaxanthin in the feed, the same pigment wild salmon get from krill and shrimp, at regulated levels. Farming quality does vary, with lice, stocking density and welfare; the better labels are organic, RSPCA Assured and ASC.
• "Sushi salmon" is not the safer option. It is almost always farmed Atlantic salmon, because pellet-fed farmed fish carry far fewer parasites than wild fish, and fish sold to be eaten raw must otherwise be frozen first. "Sushi grade" is a marketing term, not a standard. For this plan, cook your salmon; wild Alaskan fillets are the better buy.
• Mackerel: buy fresh or frozen fillets labelled as caught in the North-East Atlantic (FAO area 27), where most UK mackerel comes from, or tinned in olive oil or water. Atlantic mackerel is low in mercury; the high-mercury "king mackerel" is a different species not normally sold here. Avoid smoked mackerel for this plan: it carries a lot of salt and the smoking adds compounds you do not need.
• Sardines, trout and herring are good alternatives if mackerel is hard to find: Cornish sardines and North Sea herring are MSC-certified, and UK-farmed rainbow trout is freshwater, widely RSPCA Assured, and a clean, cheap oily fish.
• Tinned fish should list only the fish, oil or water, and salt. Anything more is a reason to choose another tin.

The fourteen days

Swap days around freely; keep the fish count. GF applies to every meal. Days marked omega-3 contain an oily-fish serving.

Week one

Week two

Lunch ideas

Nine lunches carry the fortnight. All of them are gluten-free, low in starch, and pack in a box: the soups in a flask, the salads with the dressing in a separate pot. Four lean on leftovers or batch-cooking, so lunch is assembly rather than cooking.

Pre-workout: the muffin and five alternatives

The muffin works well, but once a week is plenty. On the other training days, pick by the session: a little carbohydrate before harder or longer sessions (the banana, the apple, the oatcakes), protein before lighter ones (the eggs, the yoghurt). Eat it 45–90 minutes before training.

Nutrition across the fortnight

Every meal above carries an estimate, calculated from the ingredients and portions in data/eating-plan.php using the UK food composition tables and the product labels. Treat them as good estimates, not measurements: real values move 10–20% with the brand, the cut and the cook. Salt added in cooking is not counted.

• Carbohydrate runs at about a quarter of the usual reference amount: that is what "lower-carb" means here, with no day above 98 g.
• Sugars are almost all the kind that does not count against you: fruit, vegetables and milk. UK advice limits free sugars (added sugar, honey, syrups and juice) to 30 g a day; this plan has almost none, and the muffins have none added.
• Saturated fat averages about 7.3% of energy (the column on the right), which is the number that matters for LDL: the 20 g reference assumes a 2,000 kcal diet, and this plan runs lighter. No day goes above 10%, the general UK ceiling.
• Fibre averages about 30 g against the 30 g UK recommendation. To close the gap: a second teaspoon of psyllium in a glass of water with dinner (about 4 g), 100 g of chickpeas or butter beans in a salad (about 4–5 g), or an extra portion of vegetables at dinner.
• Salt is modest; the soup and stir-fry days are the highest, from stock and tamari, which is why the recipes ask for reduced-salt stock and a measured amount of tamari.

Energy, and how to scale it

With breakfast, lunch and dinner, and a pre-workout snack on training days, the days come to about 1187–1595 kcal as written. That suits most women, and men who want to lose a little weight. Most men need about 2,500 kcal a day and most women about 2,000 to hold their weight, more with hard training. If you are losing weight you did not mean to, add from this list:

The staples, and how to make them

Most of these are batch-cooked once or twice a week and cover the fortnight; the rest are quick midweek dinners.

The seeded breakfast bowl: what each part adds

The yoghurt breakfast is built around a combination some readers already use: 0% Greek yoghurt and blueberries with a milled flaxseed mix, psyllium husk and a muesli. Here is what each part contributes, read from the labels, and where the heart benefit actually comes from.

Two things to watch if you use both mixes. Selenium: 20 g of the Brazil-nut mix supplies about 54 µg, close to a full day's need, and fish, turkey and eggs add more; that is fine, but do not add Brazil nuts or a selenium supplement on top, because too much selenium is harmful. Fibre: a bowl with flax and psyllium plus a psyllium muffin is a lot of fibre for someone not used to it: start with half, and drink more water.

So does the combination boost the plan? Yes, modestly and genuinely, and mostly through the flax and psyllium: soluble fibre and plant omega-3 on top of a plan that already has oily fish four times a week. It is not the CoQ10, the cultures or the vitamin D that do the work for the heart. Keeping the bowl gluten-free means swapping the Bircher for certified gluten-free oats, and keeping it lower in carbohydrate means using the oats on training days only.

Where gluten hides in a plan like this

• Stock cubes and gravy granules often contain wheat; use a labelled gluten-free stock or water.
• Soy sauce is brewed with wheat; tamari labelled gluten-free is not.
• Spice blends such as ras el hanout occasionally contain wheat flour as a filler; check the label.
• Whey protein and baking powder: most are gluten-free, some are not; check.
• Buckwheat noodles are often part wheat; buy 100% buckwheat.
• If you have coeliac disease, cross-contamination matters as much as ingredients: the gluten-free chapter covers toasters, boards and shared spreads.

Three things to check first

• The yoghurt. The bowl uses 0% Greek yoghurt, the single change that did most to bring saturated fat down. Whole-fat Greek yoghurt is fine for people whose LDL is already where it should be: it looks neutral for heart outcomes in the long-term studies, but 200 g of 5% yoghurt adds about 6 g of saturated fat on each bowl day and takes the fortnight from about 7% to about 9% of energy. 2% is a reasonable middle.
• Diabetes medicines. Eating less carbohydrate can make insulin and sulfonylureas such as gliclazide cause low blood sugar. Talk to your GP or diabetes nurse before starting, not after the first hypo.
• Who it is for. Adults. Children need more starchy carbohydrate than this (the childhood chapter); kidney disease can change how much protein is right; and anyone told to follow a particular diet by their own clinician should follow that.