Nourish the body as one connected system.
Each one is a complete, evidence-aware guide to its topic, with every related article gathered beneath it.
The Complete Guide to Gut HealthFeed the microbiome, skip the hype.3 articlesRead the guide
The Complete Guide to Whole-Food NutritionWhole foods, sane portions, no rules you cannot keep.11 articlesRead the guide
The Complete Guide to Herbal Remedies & AdaptogensWhat the evidence supports, and where it runs out.4 articlesRead the guide
The Complete Guide to Blood Pressure and CirculationTwo numbers, one cuff, and a lot of quiet consequences.5 articlesRead the guide
The Complete Guide to the Menstrual CycleTwenty-eight days is an average, not a requirement.1 articleRead the guide24 articles across every topic here
St John's wort is the clearest case, with documented interactions across antidepressants, contraception, anticoagulants, HIV medication and chemotherapy drugs. Even green tea supplements can reduce blood levels of some prescription drugs.
They are not approved before sale. NCCIH states that in most cases the FDA is not authorized to review dietary supplements for safety and effectiveness before they are marketed, and the FDA says the same of itself.
The targets are less than 10 percent of daily calories from added sugars, and under 2,300 mg of sodium a day for adults. Americans average about 3,400 mg of sodium, and most of it does not come from the salt shaker.
The FDA sets the Daily Value for dietary fibre at 28 g, and lists fibre among the nutrients Americans generally do not get enough of. It is the least glamorous gut-health lever and the best supported one.
Sometimes, for some conditions, and researchers cannot yet tell you which. NCCIH states that in most instances we still do not know which probiotics are helpful and which are not, and that strong scientific evidence is lacking for most uses.
A simple, repeatable framework for assembling meals that help dial down chronic inflammation, without a restrictive diet.
Ashwagandha, rhodiola, reishi: the herbs promising calm and energy. Here is a grounded look at what they may do and where the evidence is thin.
Forget the expensive powders. The most reliable way to support your gut is cheaper, simpler, and already in your kitchen.
Eating with the seasons is not just romantic. It is a practical way to eat fresher, cheaper, and more varied food year-round.
A personalized meal plan starts with how much energy and protein your body needs each day, then fills the week with meals that fit how you eat. Use the free builder to get your daily targets, a 7-day plan and a shopping list in about two minutes.
Most adults need about 1.2 to 1.6 grams of protein per kilogram of body weight a day, according to the 2025 to 2030 US dietary guidelines, which is roughly 85 to 110 grams for a 70 kg adult. People who train hard may use 1.4 to 2.0 grams per kilogram, spread across the day's meals.
Your daily calorie needs are the energy your body burns at rest multiplied by how active you are, which for most adults is 1.40 to 2.40 times resting energy. Height, weight, age and sex set the resting figure, so two people of the same age can need very different amounts.
To plan a week of healthy meals, build every meal on the same plate (half vegetables or fruit, a quarter protein, a quarter whole grains), pick a handful of meals you can repeat, and write one shopping list from them. Checking the week against a few daily markers from the World Health Organization keeps it balanced.
A vegetarian or vegan week can supply all the protein you need from beans, lentils, soy foods, nuts, seeds and whole grains, without combining them at each meal. The one nutrient to plan for is vitamin B12, which plant foods only contain when fortified.
Most healthy adults need about 2.0 to 2.7 liters of water a day for women and 2.5 to 3.7 liters for men, counting water from food as well as drinks. Use the calculator to see your range and check how much you sweat when you exercise.
For most adults a normal resting heart rate is 60 to 100 beats per minute. Well-trained athletes often sit lower, at 40 to 60, which is usually normal.
Change a tampon every 4 to 8 hours and never leave one in longer than 8, use the lowest absorbency your flow needs, and wash your hands before and after. Those habits carry almost all of the safety.
Dried goji berries deliver 13 g of fibre and 48 mg of vitamin C per 100 g, alongside 45.6 g of sugar. The human trials behind the eyesight and immunity claims are few and small, and goji can interact with warfarin.
Iron, protein and zinc are the nutrients most strongly linked to hair growth, and mainly because a shortfall causes shedding. Food covers them well; supplements help only where a blood test confirms a deficiency.
Eating well steadies energy, makes weight easier to manage, supports mood, and is linked to lower risk of heart disease, type 2 diabetes and some cancers. Most benefits come from repetition, not from any single food.
Tingling and numb fingers most often come from nerve pressure: carpal tunnel syndrome, a compressed nerve at the elbow or neck, or sustained posture. Circulation and systemic causes explain the rest.
Oral decongestants such as pseudoephedrine and phenylephrine, plus NSAID pain relievers, are the cold medicine ingredients most often cautioned against with high blood pressure. Ask a pharmacist first.
Blood pressure below 90/60 mm Hg is generally considered low, but it only matters when it causes symptoms such as dizziness, light-headedness, fatigue, blurred vision or fainting. Causes range widely.
Most blood pressure prescriptions fall into five classes: ACE inhibitors, ARBs, calcium channel blockers, thiazide diuretics and beta blockers. Each lowers pressure differently and each has its own side effects.
