The World Health Organization (WHO) sets global guidelines on what people should eat, how food should be handled safely, and which food-related risks deserve public attention. These recommendations shape nutrition policies in countries worldwide and give individuals a science-backed framework for healthier eating. Here’s what the WHO actually recommends, and why it matters.
Core Diet Recommendations
The WHO’s dietary guidelines center on a few measurable targets. Adults should eat at least 400 grams of fruits and vegetables per day (roughly five servings). Children ages 2 to 5 should aim for at least 250 grams, and children 6 to 9 for at least 350 grams. Total fat should stay at or below 30% of daily calories, with most of that coming from unsaturated sources like nuts, fish, avocado, and olive oil.
For the nutrients most people overconsume, the thresholds are specific. Saturated fat should account for less than 10% of total calories. Trans fats, the industrially produced kind found in many packaged and fried foods, should be kept below 1% of total calories. Free sugars (those added to food or naturally present in honey, syrups, and fruit juices) should also stay under 10% of calories. Sodium intake should be less than 2,000 milligrams per day, which translates to about 5 grams of salt, or roughly one teaspoon.
On the flip side, the WHO recommends adults consume more than 3,510 milligrams of potassium daily. Potassium helps counterbalance sodium’s effect on blood pressure, and most people get it from beans, potatoes, bananas, and leafy greens. The overall pattern the WHO promotes is heavy on whole grains, legumes, fruits, and vegetables, with limited processed food, sugar, and salt.
Sodium Reduction as a Global Priority
Excess sodium is one of the WHO’s biggest dietary concerns. Most populations worldwide consume far more than the recommended ceiling, often double or more. The organization set a target of a 30% relative reduction in average sodium intake by 2025, with a long-term goal of getting populations below 2,000 milligrams per day. Most dietary sodium doesn’t come from the salt shaker. It’s built into processed foods, restaurant meals, bread, cured meats, and condiments. That’s why the WHO works with governments to set reformulation targets for the food industry, requiring lower sodium levels in packaged products.
Red Meat, Processed Meat, and Cancer Risk
One of the WHO’s most widely discussed positions involves meat. The International Agency for Research on Cancer (IARC), a WHO body, classified processed meat as a Group 1 carcinogen, meaning there is sufficient evidence that it causes cancer in humans. The specific link is to colorectal cancer: every 50-gram daily portion of processed meat (about two slices of bacon or one hot dog) increases colorectal cancer risk by roughly 18%.
Red meat received a Group 2A classification, meaning it is “probably carcinogenic.” The evidence is more limited, but data suggest that eating 100 grams of red meat daily could raise colorectal cancer risk by about 17%. There are also possible links to pancreatic and prostate cancer, though those associations are less certain. The Group 1 label for processed meat doesn’t mean it’s as dangerous as smoking. It means the strength of the evidence that it causes cancer is similarly convincing, not that the magnitude of risk is the same.
Fat Quality Over Fat Quantity
The WHO updated its guidelines on fats and carbohydrates in 2023, reaffirming that the type of fat matters more than simply eating less of it. The recommendation is to replace saturated fats (from butter, fatty cuts of meat, coconut oil, and full-fat dairy) with unsaturated fats whenever possible. Trans fats deserve the most caution. Even at very low intake levels, industrially produced trans fats raise the risk of heart disease. The WHO has been pushing for their complete elimination from the global food supply, and many countries have now banned or restricted them in commercial food products.
Food Safety: The Five Keys
Beyond nutrition, the WHO runs a major food safety education program built around five principles: keep clean, separate raw and cooked foods, cook thoroughly, keep food at safe temperatures, and use safe water and raw materials. These guidelines exist because unsafe food causes an estimated 600 million cases of foodborne illness and 420,000 deaths every year worldwide. Children bear a disproportionate share of that burden. About 30% of all foodborne deaths occur in children under five, which amounts to roughly 125,000 young children dying annually from contaminated food.
The “keep food at safe temperatures” rule is one people most commonly break at home. Cooked food left sitting at room temperature for more than two hours enters the danger zone where bacteria multiply rapidly. Refrigerating leftovers promptly and reheating them thoroughly are two of the simplest ways to reduce your risk.
Infant and Young Child Feeding
The WHO’s recommendations for feeding babies and toddlers are among its most specific. Breastfeeding should begin within one hour of birth, and infants should be exclusively breastfed for the first six months of life. That means no water, juice, or other foods during that window. At six months, parents should introduce solid foods while continuing to breastfeed up to age two or beyond.
The progression is gradual. Infants aged 6 to 8 months should eat two to three meals per day. From 9 to 23 months, that increases to three to four meals with one to two additional snacks. Food consistency and variety should increase over time, starting with pureed or mashed textures and moving toward the family’s regular diet. These guidelines are developed jointly with UNICEF and are designed to reduce childhood malnutrition, which remains one of the leading contributors to child mortality globally.
How WHO Guidelines Differ From U.S. Guidelines
If you’re in the United States, you may notice some overlap and some differences between WHO recommendations and the Dietary Guidelines for Americans. Both set the saturated fat limit at less than 10% of calories and the added sugar limit at less than 10% of calories. The sodium targets diverge, though. The U.S. guideline allows up to 2,300 milligrams per day for adults, while the WHO recommends staying under 2,000 milligrams. That 300-milligram gap is roughly the sodium in a single slice of deli meat.
The WHO guidelines are designed to apply across vastly different food cultures, economic conditions, and disease patterns, so they tend to be broader in scope. National guidelines like those in the U.S. layer on more specific advice about food groups and portion sizes tailored to local eating habits and available foods. Both frameworks point in the same general direction: more plants, less processed food, and careful attention to sugar, salt, and saturated fat.