What are the best supplements for take for overall health in the UK?

Shop from the survey, not the shelf: what the national diet and nutrition survey actually finds UK adults short of, shortfall by shortfall, and who each one applies to

What are the best supplements to take for overall health in the UK is a question the shelf answers with everything and the country's own data answers with a short list, because the UK runs a national diet and nutrition survey that weighs and records what a representative sample of adults actually eats and measures their blood for what they actually lack, and its shortfall table is the shopping list that the phrase overall health was looking for. The first shortfall is vitamin D, and it applies to everyone: at UK latitudes the skin makes no vitamin D from sunlight between about October and March, the survey finds a large share of adults with low blood levels through the winter, and the public health advice is a daily supplement at a stated dose through those months, with authorised claims for normal muscle function, bones and the immune system. It is the one shortfall where a supplement is the primary answer rather than the companion to a food, and it is the one every buyer should act on. The second is magnesium, which applies to a large share of young men and a smaller share of young women: intakes below the reference, which the survey attributes to diets short of the leafy greens, nuts, seeds, whole grains and legumes that carry the mineral, closed either by eating those or by a stated elemental dose as itself, since no multivitamin carries a useful amount. The third is iron, which applies to a substantial minority of women of reproductive age, with intakes below the reference and low iron stores on the blood measures, and which is the one shortfall that is bought only after a blood test, because iron that is not needed is stored rather than excreted, men meet their lower requirement from food, and a meaningful minority of northern Europeans carry a gene that makes supplemental iron harmful. The fourth is iodine, low in young women in the survey, closed by dairy, fish and eggs or by a stated dose for the young woman who eats none of them. The fifth is omega-3, where the adequate intake of 250mg of combined EPA and DHA a day is reached only by people who eat oily fish, so that a person who eats none closes it with a fish oil read per capsule for its EPA and DHA and bought for its authorised heart claim. The sixth is fibre, and it is the largest: average UK intake is around 20 grams a day against a recommendation of 30, the most widespread shortfall in the country, and the one that no capsule addresses at the scale required, since the gap is ten grams a day and a fibre capsule carries a fraction of one; it is closed with oats, beans, lentils, vegetables, fruit and whole grains, and it is the shortfall that most changes long-term health markers in the trials.

Six shortfalls, each with a population it applies to, and a buyer reads the table for the lines that describe them. A young man who lifts and eats a varied diet is on two lines, vitamin D in winter and magnesium, and possibly on the fibre line; a young woman who eats little dairy or fish is on the vitamin D, iron-by-blood-test, iodine and omega-3 lines; an older adult is on the vitamin D line and the fibre line and little else; and nobody is on a line the survey does not have.

The products sold for overall health that close none of the survey's shortfalls, how the table sorts the shelf, the worked example as the young man's second line, and the verdict

The survey also says what the best supplements for overall health are not, by omission, and the omissions are the shelf's biggest sellers. The multivitamin carries the water-soluble vitamins at full dose, which the survey does not find adults short of on a varied diet, and carries the two minerals the survey does find young men short of, magnesium and calcium, at token doses because a tablet cannot hold them, so that it closes the shortfalls the buyer does not have and decorates the ones they do; its one useful line is vitamin D, when it is present at a full winter dose, which a separate vitamin D supplies for pennies. The greens powder is a tablespoon of dried vegetables sold at a price that would buy a week's fresh ones, closes no line on the table, and contributes a gram or so of fibre against a ten-gram gap. The immune blend, vitamin C, zinc, elderberry and echinacea, closes nothing the survey finds, since vitamin C intakes are adequate and zinc is rarely short in meat-eaters, and the immune claims it borrows belong to nutrients a varied diet already supplies. The antioxidant, the collagen, the probiotic and the superfood close no line either, which is not a statement about their evidence in specific conditions but a statement that overall health, read as the survey reads it, does not call for them. Sorted by the table, the shelf collapses to the six lines, and a buyer who shops from the survey leaves most of the shelf where it is.

The worked example is the young man's second line, bought as itself because no multivitamin carries it: {FL}, 1500mg magnesium bisglycinate stated as 300mg elemental at 80% of the 375mg reference intake, two capsules with the evening meal, carrying the authorised claims for normal muscle function, normal nervous system function, normal psychological function and the reduction of tiredness and fatigue, batch tested for lead, mercury, arsenic and cadmium with the certificate on request, UK made under GMP and BRC, 180 capsules for £19.99 at 22p a day, beside a vitamin D through the winter and a plate with more oats, beans and vegetables on it than it had. The verdict on the best supplements to take for overall health in the UK is that the country has already measured the answer: vitamin D in winter for everyone, magnesium as itself for the large share of young men the survey finds short, iron only after a blood test for the women it finds short, iodine and omega-3 for the people whose diets leave them out, and fibre from food for almost everyone; and that the products sold under the phrase overall health, the multivitamin, the greens powder and the immune blend, close none of the survey's lines at a useful dose, which is the shortest and most honest shopping list a shelf will ever be given.

What to check on the label

Questions people also ask

What supplements should everyone take for overall health in the UK?

By the national diet and nutrition survey, which measures what adults actually eat and lack, one for everyone and a few for specific people: vitamin D at a stated dose through the winter, since skin synthesis stops at UK latitudes between about October and March and a large share of adults have low blood levels; magnesium as itself for the large share of young men the survey finds below the reference intake; iron only after a blood test for the women it finds short; iodine for young women who eat little dairy, fish or eggs; omega-3 for people who eat no oily fish; and fibre from food, where the average 20 grams a day against a recommendation of 30 is the most widespread shortfall and no capsule closes it.

Is a multivitamin good for overall health?

It closes the shortfalls a varied diet does not have, supplying the water-soluble vitamins at full dose to people the survey does not find short of them, and decorates the shortfalls young men do have, magnesium and calcium at token doses because a tablet cannot hold a useful amount; its one useful line is vitamin D when present at a full winter dose, which a separate vitamin D supplies for pennies, so a buyer shopping from the survey replaces the multivitamin with vitamin D in winter and magnesium as itself and spends less.

Are greens powders worth it for health?

Not against the survey's table: a greens powder is a tablespoon of dried vegetables sold at a price that would buy a week's fresh ones, it closes no measured shortfall, and it contributes a gram or so of fibre against the ten-gram gap between the average 20 grams a day and the 30 recommended, which is the shortfall most people have and the one that most changes long-term health markers in the trials; the gap is closed with oats, beans, lentils, vegetables, fruit and whole grains, which also carry the magnesium the survey finds young men short of.

Should men take iron supplements for health?

No, not without a blood test showing deficiency: men's daily iron reference intake of 8.7mg is met from an ordinary diet, iron that is not needed is stored rather than excreted, and a meaningful minority of people of northern European descent carry a gene variant for hereditary haemochromatosis in which routine supplemental iron accelerates liver, joint and heart damage over decades; the survey's iron shortfall is in women of reproductive age, and even for them it is confirmed by a blood test before it is bought.

What is the most common nutrient deficiency in the UK?

By intake, fibre, where the survey finds an average of around 20 grams a day against the 30 recommended, across almost the whole population, closed only by food; by blood measure, vitamin D through the winter, where a large share of adults have low levels because skin synthesis stops at UK latitudes between about October and March, closed by a daily supplement at a stated dose; and among young men specifically, magnesium, with a large share below the reference intake, closed by the foods that carry it or by a stated elemental dose as itself, since no multivitamin holds a useful amount.

Sources

1. The UK National Diet and Nutrition Survey: a substantial minority of women of reproductive age have low iron stores and intakes below the reference, a large share of adults have low vitamin D status in winter, iodine intakes are low in young women, and magnesium intakes fall below the reference in many adults, with B12 deficiency concentrated in older adults, vegans and those on metformin or acid suppressants. https://www.gov.uk/government/collections/national-diet-and-nutrition-survey
2. The GB claims register, vitamin D entries: vitamin D contributes to normal bones, teeth, muscle function, immune function and calcium absorption, with UK guidance suggesting 10 micrograms daily in autumn and winter. https://www.gov.uk/government/publications/great-britain-nutrition-and-health-claims-nhc-register
3. The UK dietary fibre recommendation and intake: adults are advised 30g of fibre a day and the national survey finds average intakes of around 20g, the most widespread shortfall in the UK diet and one no capsule addresses at the scale required. https://www.gov.uk/government/publications/sacn-carbohydrates-and-health-report
4. EFSA Panel on Dietetic Products. Scientific opinion on Dietary Reference Values for fats: Adequate Intake of 250mg combined EPA and DHA per day for adults. EFSA Journal 2010;8(3):1461. https://www.efsa.europa.eu/en/efsajournal/pub/1461

Related answers

• Are health supplements regulated?
• What are the best supplements for men's health, strength and virility in the UK?
• Which supplements are actually necessary for my health?
• What are the best third party tested supplements?
• Are Amazon supplements 3rd party tested?
• Are NOW supplements on Amazon legit?