Nutrition Course: The Complete Nutrition Course

Explore how nutrients, including carbohydrates as the body's main energy source, fats, proteins, vitamins, minerals, water, and antioxidants, vary by age and pregnancy or lactation.

Explore how carbohydrate deficiency triggers ketosis and possible ketoacidosis risk in type 1 diabetes, and why complex carbs from fruits, vegetables, and grains are preferred.

Discover how fats and fatty acids—saturated and unsaturated, including mono- and polyunsaturated types and essential omega-6 and omega-3s—support heart health, brain function, energy, and vitamin transport.

Explore how dietary fat supports fat-soluble vitamin absorption and satiety, debunking myths about fat as unhealthy; learn about omega-3s, saturated fats, and trans fats, and how to choose healthy fats.

Explore how dietary proteins supply amino acids for protein synthesis, reveal essential amino acids, enzymes, antibodies, and hormones, and explain energy use and structural roles of keratin and collagen.

Learn to calculate your total daily energy expenditure by estimating basal metabolic rate. Use an online calculator, add activity, and aim for neutral, negative, or positive calorie balance.

Learn practical calorie and macro counting using a kitchen scale, focusing on accuracy, when to weigh foods, and simplifying tracking with recurring meals and reliable data.

Outlines a 2600-calorie maintenance for an active 25-year-old, allocating protein, carbs, and fat, then explains how to fill remaining calories with extra carbs or fat.

Maintain a 2600 calorie plan for a 25-year-old man with four training days, allocating 145 g protein, 270 g carbs, and 60 g fat across five meals.

Explore vitamins as organic compounds required in small amounts for growth, including fat-soluble vitamin E and vitamin A, carotenoids, and vitamin D, supporting vision, immunity, skin, and bone health.

Vitamin A deficiency causes night blindness and impaired vision in low light, contributing to preventable blindness in children; high-risk groups include premature infants and people with cystic fibrosis.

Vitamin B comprises a group of water-soluble vitamins essential for converting carbohydrates into usable energy and visualising fats and proteins. Vitamin B1, or thiamine, forms ATP and supports immune health.

Explore vitamin b3 (nicotinic acid/niacin), its roles in hormone production and circulation, deficiency symptoms like pellagra, and how supplementation improves lipids and supports heart health.

Vitamin B6 supports neurotransmitter production for nerve and brain function. It may lower homocysteine, supporting heart health, mood, and pregnancy benefits, with sources like chicken, fish, lentils, spinach, and seeds.

Explore vitamin B9 folic acid’s role in fetal development, neural tube health, DNA and blood cell formation, and dietary sources, plus vitamin B12’s impact on DNA, energy, and homocysteine control.

Explore vitamin C's role as an essential water-soluble antioxidant and its impact on collagen formation, wound healing, and potential cancer and heart disease considerations, plus dietary sources and safety.

Learn how vitamin d enables calcium absorption for bone health, supports osteoporosis and rickets prevention, and influences immune and nervous system function, with sun exposure and dietary sources.

Discover how Vitamin E, a fat-soluble antioxidant with eight tocopherol forms, supports immunity, eye health, and cardiovascular function, while highlighting risks of supplementation and benefits of Vitamin E-rich foods.

Explore how vitamin K, a fat soluble vitamin, supports blood clotting and bone health, and how diet, supplements, and vitamin K1 vs K2 relate to heart health.

Explore minerals with a focus on aluminum: its trace presence, nonessential toxicity, absorption, health risks, exposure sources, symptoms, and detection through hair, urine, and blood tests.

Explore how sodium, an essential mineral and electrolyte, supports membrane potential, nerve transmission, and fluid balance, and how intake relates to hyponatremia and high-sodium processed foods.

Learn about bismuth, a heavy metal less toxic than lead or arsenic, used in plumbing and as a medicine for ulcers, heartburn, and Helicobacter pylori-related GI disorders, with antimicrobial activity.

Explore calcium's role as the body's most abundant mineral in bones and teeth, its absorption with vitamin d, and how age, diet, and lifestyle affect calcium balance and health.

Explore chloride as an essential mineral and electrolyte that maintains fluid balance, supports digestion through hydrochloric acid, and identify key dietary sources and risks of deficiency or excess.

Chromium acts as a trace mineral that improves insulin action and supports metabolism of carbohydrates, fats, and proteins to stabilize blood sugar. Supplementation at 200–400 mcg may normalize blood sugar.

Explore how copper acts as a vital cofactor for enzymes, supports connective tissue and energy production, and aids iron incorporation, nerve function, and lung health, with deficiency and toxicity signs.

Explore how fluoride acts as a trace element to prevent tooth decay, support bone and enamel health, and influence osteoporosis risk through water and dietary sources.

Explore iodine as a trace element essential for thyroid function and hormone synthesis. Learn how deficiency, iodized salt, and dietary sources affect development and health, and the risks of excess.

Explore iron as an essential mineral for red blood cell production, oxygen transport, and brain development. Understand heme vs non-heme iron, absorption, deficiency risks, and dietary sources.

Discover manganese, an essential mineral vital for bone growth, nerve function, immune health, and blood sugar regulation. Explore its role in enzymes, gluconeogenesis, and antioxidant protection.

Discover how magnesium supports over 300 body reactions, from energy metabolism to nerve and muscle function, and explore deficiency risks, toxicity, and food sources.

Explore how selenium, an essential element in about 24 proteins, protects against free radicals and regulates thyroid hormones via glutathione recycling.

Zinc is an essential trace mineral that supports immune function and can help fight colds, as well as growth and brain development; deficiency weakens immunity and mood, while excess toxicity.

Powering every cell and process, water supports temperature regulation, digestion, and nutrient transport. Protecting organs, nerves, and bones, water forms synovial fluid for lubrication and cushions the spine.

Explore how electrolytes regulate muscle relaxation and heart contraction. Identify factors such as age, sex, weight, activity, and sweating that affect daily water needs and gauge hydration by light urine.

Stay hydrated by drinking six to seven cups of water daily and avoid excessive water that risks hyponatremia. Compare tap, bottled, and well water, noting regulations and contaminants like bpa/bps.

Eat foods rich in antioxidants—vitamins e and c, beta carotene, lutein, and lycopene—to counter free radical damage and oxidative stress linked to aging and disease.

Explore how hunger and appetite drive weight loss, distinguishing physical hunger from mental appetite, influenced by ghrelin and leptin, and assess diets by weight loss and nutrition ratings for sustainability.

the atkins diet is a four-phase, low-carbohydrate plan beginning with induction of 20 grams or fewer carbs daily from non-starchy vegetables, then gradually increasing carbohydrate intake to support weight loss.

Examine Atkins diet effects, from short-term weight loss and HDL cholesterol improvement to Atkins flu symptoms, and evaluate long-term weight maintenance, diabetes risk, and lipid changes under carbohydrate restriction.

The raw food diet is a plant-based approach not heated above 115 Fahrenheit, includes fruits, vegetables, nuts, seeds, legumes, some raw animal products, and claims to preserve enzymes and alkalinity.

Explore the raw food diet, its short-term effects and risks, including weight loss from calorie restriction and exposure to E. coli and salmonella; review long-term nutrient deficiencies and cholesterol impacts.

Discover the ketogenic diet, a carbohydrate-restricted, high-fat plan that promotes weight loss, supports macronutrient monitoring, and may reduce seizures, with 75 percent fat, 20 percent protein, and 5 percent carbohydrates.

Explore how the ketogenic diet shifts energy use to ketones, causing short-term fatigue, thirst, and rapid initial water weight loss, followed by sustained energy and appetite suppression.

Explore the paleo diet, built on hunter-gatherer foods like fish, meat, vegetables, and fruits, while avoiding processed foods, grains, legumes, and dairy.

Adopt the paleo diet by cutting sugar, starches, and processed foods to achieve short-term weight loss and improved glucose tolerance, with sustained weight loss and anti-inflammatory, satiating properties.

The Mediterranean diet blends olive oil, herbs, and plant-forward meals with fish and poultry, reducing red meat and salt, to support heart health, cancer risk reduction, longevity, and weight control.

The Mediterranean diet emphasizes fruits, vegetables, grains, and healthy fats, is low in saturated fat and sodium, and provides fiber and antioxidants for heart health, nutrient balance, and weight management.

Weight Watchers is a commercial weight loss program started in the 1970s that promotes portion control, reduced calories, and lifestyle changes with coaching and group support.

Weight Watchers provides a balanced, low-calorie plan with adequate micronutrients, yet relies on processed foods that may raise sodium and sugar, requiring ongoing portion control for maintenance.

Discover the dash diet, a lifestyle plan to lower blood pressure and heart disease risk through sodium control and emphasis on fruits, vegetables, and whole grains.

Learn how the dash diet protects against hypertension and lowers blood pressure, reduces heart disease risk, and is customizable for weight loss with restaurant tips, including lean proteins and vegetables.

Compare vegan and vegetarian diets, their definitions and common plant-based foods, with soy and tofu as protein sources and nutrients such as B12, D, and omega-3.

Reveal how vegan and vegetarian diets yield short-term weight loss and improved blood pressure, sugar, and lipid profiles in a 10-day program. Note potential gas, nutrient gaps, and implementation differences.

Foods affect health uniquely; use whole foods, lean proteins, and small meals, avoid spicy and acidic foods, to ease acid reflux, GERD, and heartburn with your health care provider.

Explore how acne forms from clogged pores, excess oil, bacteria, and inflammation, and learn a whole foods, anti-inflammatory diet with omega-3 fatty acids and low glycemic options.

Understand how anemia arises when blood lacks enough healthy red blood cells to deliver oxygen. Use iron-rich foods like beef and leafy greens, plus vitamin C to boost iron absorption.

Explore how a Mediterranean-style anti-inflammatory diet eases arthritis and ADHD symptoms by avoiding fried foods, high-heat meats, refined carbs, and artificial additives, with fiber-rich whole foods.

Explore autism spectrum considerations, gluten sensitivity, and autoimmune protocol, a modified paleo plan that eliminates triggers and guides reintroduction, alongside a plant-based diet with lean protein, fruits, vegetables, and legumes.

Explore how nutrition can influence back pain, including autoimmune factors like ankylosing spondylitis, and the role of anti-inflammatory diets and minerals such as calcium and magnesium.

Support cancer treatment with a plant-based, nutrient-dense whole foods diet and color variety, at least two and a half cups of fruits and vegetables daily, while avoiding caffeine and alcohol.

Herpes simplex virus type one causes cold sores and may flare with arginine-rich foods; favor lysine-rich foods, antioxidants, zinc, and hydration to support immunity.

Explore causes of constipation and practical dietary strategies, including prune juice, magnesium-rich foods, fiber, and hydration, while also addressing cough relief through warm fluids, honey, lemon, and antioxidant nutrients.

Learn how dandruff arises from oily skin, hormones, and nutrient deficiencies, and adopt a scalp-friendly diet rich in zinc, B vitamins, omega-3s, leafy greens, fish, and water.

Explore type 2 diabetes management through diet and physician guidance, contrasting low carbohydrate and calorie-controlled plans that emphasize proteins, vegetables, and fats while avoiding high carbohydrate foods.

Improve ear infection outcomes by restoring beneficial bacteria with fermented foods after antibiotics, and may support eczema management through an elimination diet.

Identify fatigue causes such as lack of sleep, stress, illness, anemia, and malnutrition, and manage them with nutrition, sleep, and mindful caffeine and sugar intake.

Identify food poisoning symptoms, dehydration risks, and the need for clear fluids and bland foods to support stomach recovery; also note gallstone risk and the role of fiber.

Learn how gastroenteritis can strike quickly with fever, vomiting, and diarrhea, and prevent dehydration by delaying intake until vomiting passes, then reintroduce bland foods such as dry toast.

Identify halitosis causes and dental hygiene as steps to manage bad breath. Recognize migraine triggers from foods like caffeine, alcohol, chocolate; maintain hydration and eat yogurt, apples, celery, parsley, mint.

Understand hypercholesterolemia and hypertension, and adopt diet strategies to boost HDL and reduce LDL through soluble fiber, omega-3s, and DASH diet guidelines.

Explore how hyperthyroidism and hypothyroidism affect metabolism and health, and learn dietary strategies with iodine, selenium, and anti-inflammatory foods to support thyroid function.

Understand influenza as a virus with fever, cough, and diarrhea, and learn how selenium-rich foods like Brazil nuts, chia, and brown rice support immunity and hydration.

Explore irritable bowel syndrome and how a low-FODMAP approach may ease symptoms by reducing fermentable carbohydrates like fructose, lactose, and galectin in common foods.

Learn how electrolyte balance, especially potassium, calcium, and magnesium, affects leg cramps and dehydration, and discover dietary strategies like potassium-rich foods and calcium-rich dairy to support muscle and bone health.

Identify osteoporosis risks in postmenopausal women and learn dietary strategies to strengthen bones, including calcium, vitamin d, omega-3s, dairy, and sardines.

Understand psoriasis, an autoimmune inflammatory skin disease. Learn how an anti-inflammatory diet—fruits, vegetables, fish, nuts, whole grains, omega-3s—may help manage symptoms and consider gluten and weight loss.

Ulcers stem from bacteria rather than spicy foods, and alcohol or caffeine may worsen symptoms; identify personal triggers, and consider calming foods like melon.

Explore nutrients including carbohydrates, fats, proteins, vitamins, minerals, water, antioxidants, and phytonutrients; learn how needs vary by age and pregnancy, and how carbohydrate types influence energy, digestion, and glucose control.

Understand how the nutrition facts label, guided by FDA regulations, communicates calories, daily values, serving sizes, and nutrients such as fat, sodium, carbohydrates, protein, and vitamins.