An enzyme that helps digest lactose in the intestines.
The sugar found in milk.
A simple sugar that is used by living cells as a source of energy.
A type of sugar that is not as sweet as glucose.
An enzyme that helps digest galactose.
From the Latin word for “cheese,” the main protein in cow milk and cheese.
Found in the neck, it is the largest hormone-secreting gland in the body. It controls the levels at which the body burns energy, makes proteins, and responds to other hormones.
A substance also known as an antibody generator that prompts the body to create antibodies or have an immune response. Antigens are usually proteins or parts of bacteria or viruses.
Stiffening of arteries.
A fatty, waxy steroid found in animal cell membranes. The body produces cholesterol naturally, but excessive cholesterol from food intake can cause plaques to form in the arteries, leading to heart problems, aneurisms, and other health problems.
Amino Acid
Molecules that have many important roles in metabolism. Proteins are simply chains of amino acids. Graphic from
A hormone that causes body tissues to take up sugar from the blood to use for energy, rather than using existing fat for energy.
Lactose Intolerance
Author: Professor Walter J. Veith, PhD
Publish date:
Summary: Intolerance to products containing lactose is widespread. Could this be an indicator that dairy products are not meant for human consumption?

Milk and dairy products are advertised as wonder foods that will supply all the nutrients required for healthy growth. The calcium levels in milk, in particular, are stressed as an essential component of the human diet, and the impression is created that a loss of this dietary source of calcium will lead to abnormal bone development.

CC Andrew Magill on Flickr

It is certainly true that dairy products are packed with nutrients, but this does not mean that the combination of nutrients is suited to human nutrition.

Mother's milk is essential for infants, but then infants are specially designed to cope with this growth-promoting food. Prior to weaning, the necessary enzyme systems needed for the digestion and assimilation of milk components are active, but they are progressively deactivated with age. The milk of other mammals also differs in composition from human milk, and this, together with the potential danger from ingested antigens, makes cow's milk unsuitable for human consumption.

There is considerable resistance from industry, and even from the established scientific world, to the idea that dairy consumption is detrimental to health, but the evidence from recent scientific findings seems fairly conclusive with regard to this issue. Dairy consumption is being coupled with a host of other diseases, and as consumption rises worldwide, so the evidence is becoming more and more conclusive.

In the past, the detrimental effect of the consumption of dairy products may have been masked by the positive effects of other lifestyle choices, such as higher consumption of grains, fresh fruits, and vegetables with their high fibre content. Western diets have, however, increased in the consumption of animal products, including dairy products, with a corresponding decline in the consumption of grains, legumes, fruits and vegetables, and this may explain the increase in the incidence of degenerative diseases in industrialized countries.

Lactose Intolerance

Lactose, the sugar in milk, is broken down in the intestines by the enzyme lactase. Most people are able to digest lactose properly during infancy and early childhood, but as they grow older this ability declines. Approximately 75% of adults worldwide are lactose intolerant.

Native Americans and Asians have the highest intolerance, and only slightly lower than these are the Blacks, Jews, Hispanics, and southern Europeans. Lactose intolerance is lowest among northern Europeans and their descendants. In the US some 25% of Caucasians, 51% of Hispanics, and 75% of all African Americans have insufficient levels of lactase to digest dairy products, whereas 90% of Asian Americans are lactose intolerant.i,ii

It has been found that 90% of African people are lactase deficient, and in the case of the rural Zulu of South Africa it was found that they showed no change in blood glucose concentrations after ingesting 50 g of lactose.iii When milk and dairy products are digested, lactose is broken down by the enzyme lactase into glucose and galactose.

The presence of lactose is a feature of mammalian milk, but the concentration of this sugar is normally geared to the needs of the species, as are the concentrations of all the other components of milk. Human milk does not only contain the essential nutrients that are required for growth and development, but also contains the bacterium bacillus bifidus that assists in the digestion of lactose.

In cow's milk, however, the bacterial composition differs from that of human milk. If cow's milk is fed to infants, this can interfere with the digestion of lactose. The lower protein and higher carbohydrate content of human milk is also more suited to the needs of infants, because their growth rates are considerably lower than those of calves.

After the conversion of lactose to glucose and galactose, the available galactose is not used as such, but is converted to glucose in the liver by a series of steps requiring the initial presence of the enzyme galactokinase. The production of both lactase and galactokinase declines with age, and the capacity to digest and utilize the products of lactose in adult life is thus curtailed. A deficiency in the enzyme lactase will result in fermentation of lactose by intestinal bacteria, which can result in abdominal distress such as gas, cramping, bloating, stomach rumbling, altered bowel habits, and diarrhea.iii The severity of the symptoms depends on the quantity of lactose consumed and the level of intolerance.

Milk Protein Intolerance

A further problem with milk is encountered in the digestion of the milk protein casein. In comparison to human milk, cow's milk contains 300% more casein and more than double the amount of total protein. Casein and beta-lactoglobulin are the two main proteins in milk and they are unique in that they contain a perfect blend of amino acids, which is precisely what is needed during early infant growth. Human infants, however, double their mass on average 180 days after birth, whereas cows achieve the same feat in only 47 days. Cow's milk is therefore geared to meet the rapid growth requirements of cows, but is not suitable for humans.

Casein also naturally stimulates thyroid function in infants, and as the thyroid is involved in many developmental processes, including the development of the nervous system, casein from other mammals could have adverse effects on metabolic processes of infants particularly since a portion of the dietary casein can be absorbed undigested and serve as antigen.

CC Nate Steiner on Flickr

As with lactase, the concentration of the enzyme rennin, that breaks down the casein, also declines with age in all mammals. By the time milk teeth develop it is virtually non-existent in the human digestive tract. Without renin, the digestion of casein has to be carried out by the normal proteolytic enzymes which are not as efficient in breaking down casein.

The presence of casein in the diet of mammals has also been linked to elevated cholesterol levels and various degenerative diseases such as arteriosclerosis. Rabbits fed casein developed arteriosclerosis, but the effect could be reduced if a plant protein source, such as soybean flour was introduced into the diet. This shows that the amino acid pool produced by casein probably no longer meets the requirements of weaned or adult mammals.

Casein also produced higher cholesterol levels than soy protein in a number of animal species, including rates, hamsters, guinea pigs, pigs, and monkeys. In humans, a reduction in cholesterol levels was also found if meat and dairy proteins were replaced by soy proteins.iv,v Casein also seems to have an adverse effect on insulin secretion, hormone levels, and calcium metabolism.

Does milk really provide the calcium we need for strong bones? Find out the truth.

Updated January 2009.



i Editorial, "Lactose intolerance" Lancet 338 (1987): 663-664.

ii B. Levine, "Most frequently asked questions about lactose intolerance," Nutrition Today 31 (1996).

iii S. O'Keefe et al., "Milk induced malabsorptions in malnourished African patients," American Journal of Clinical Nutrition 54 (1991):130-135.

iv K. Carroll, "Review of clinical studies on cholesterol-lowering response to soy protein," Journal of the American Dietary Assocation 91 (1991):820-827.

v R. Van der Meer, A. Beynen, "Species-dependent responsiveness of serum cholesterol to dietary protein" Journal of the American Oil Chemists Society 64 (1987):1172-1177.

Science Deceptions
Media Deceptions
Spiritual Deceptions
Health Deceptions
A Basis for Conflict
Is there evidence for Creation science? How does it compare to evolution? The following articles give insight in to these questions and more.
The Big Bang Theory Creation and Evolution: Is Compromise Possible? How Can We See Stars That Are Billions Of Light Years Away? Understanding the Creation Week The Rise of Evolutionary Thinking Geocentricity: It's Time to Face the Facts Earth's History: Conflicting Paradigms Lamarck Proposes Natural Selection Where did the Universe Come From? Age Of The Earth Evidence for a Young Universe Is Carbon-Dating Accurate? Flood Chronology
Evidence in Stone
Can we understand the age of the earth by the rocks? What theory does the evidence support?
Soft Rock Evidence for Rapid Washout
The Fossil Record
What does the fossil record show us? Is it all random or a defined science that we can understand? Where does evolution fit? Uncover mysteries in the history of the Earth.
Evolution of the Horse Evolutionary Sequences Order in the Fossil Record Explosive Evolution Fossils prove a Flood Fossil Footprints Dinosaurs and the Flood Petrified Trees The Biblical Flood Reasons For Extinction Fossil Reefs The Post-Flood World Human Evolution
Genes of Genesis
As we study the genome, the molecule, and the atom, we see a vast network of intricate systems beyond our understanding. Were these systems really formed by chance?
Why So Many Species - Glossary Is the Gastraea Hypothesis Viable? Mechanisms For Variation Built-in Variation in the Gene Pool Creating Life in a Test Tube? "Species" versus "Kind" Molecules That Began Life Natural Selection Reproductive Exchange Natural Selection as a Creative Force Transposable Elements Recombination of Chromosomes Dinosaur Extinction and Global Catastrophe Ernst Haeckel's Theories Variation and Classification Why So Many Species? The Australian Problem Synesthesia: Mystery of God’s Creation
Creation to Restoration
How did this world change from the perfection depicted in Genesis to a world full of thorns, thistles, parasites, and death? If God made everything perfect, how could it have all been so changed?
A Good World Gone Bad An Imperfect Planet Evidence For Design Evidence For Transformation Rapid Transformation Clean and Unclean: The History of the Human Diet The Dawn Chorus and Life Forces
Archaeology and the Bible
Archaeology and prophecy have proven the Bible to be true. But what's so special about the Bible that makes it a point of so much controversy?
Archaeology Confirms the Bible The Lost Books of the Bible
Crossing Musical Boundaries
Music is a powerful emotional motivator that crosses cultural and language barriers. Its message can be understood by every culture and people across the planet.
Can You Feel the Music? The Bible and Rock Music: Are they Compatible? The Last Great Contest – Worship From the Horse's Mouth: The Rock Industry Condemns Itself
Hollywood and the Movies
What is the system of worship found most often in our society? Does it glorify God?
Hollywood's History Gnostic Themes in the Movies Hollywood and Gnosticism
Brain Closed—Please Come Again
Research has shown that our sensitivity to stimuli reduces itself yearly by about 1%. Is your brain hibernating?
The Dangers of Television
Beware of the television's abilities to hypnotize, alter moods, and even cause depression.
Violence and Video Games
Like music and movies, video games are addictive and can cause behavioral problems.
The Origins of Halloween
What is the origin behind this popular festival celebrated every October 31?
Catholic Councils
What happened at the Council of Trent? The First Vatican Council The Second Vatican Council
The Jesuits
Learn what people throughout history have had to say on the reputation, history, and political nature of the Jesuit Order.
Ignatius Loyola and Spiritual Formation Protestantism Destroyed The Jesuit Superior General
The Pope Claims to be God on Earth
Read proof that throughout the Roman Church's history, the Papacy has often claimed that the Pope is divine.
Cross and Crown
This book "Cross and Crown" is a powerful and thrilling recital of the most romantic and dramatic incidents in history to be found on record, told in the simplest, most graphic, and entertaining form.
The Aggressive Intentions of the Papacy
The historian Ranke says this about Protestant-Catholic relations: "In the year 1617, everything betokened a decisive conflict between them. The Catholic party appears to have felt itself the superior. At all events it was the first to take up arms."

This article highlights quotes from historical and Catholic sources proving the Papacy's aggressive nature.
The Bloody History of Papal Rome - A Timeline The Bloody History of Papal Rome - Quotes Christianity and Violence
Stories of the Reformation
Dive into history to uncover the remarkable stories of faith and passion in early Protestantism.
John Laski Jerome of Prague John Wycliffe Louis De Berquin Gaspard De Coligny Philipp Melanchthon
Religious Doublespeak
Language can be used to communicate both truth and lies. Learn about the religious doublespeak being used to pull the wool over the eyes of the world.
Hegelian Thinking and World Politics
Hegelian dialectic thinking is applied in many situations in world politics. Often the ordinary people are used as pawns in the game of Hegelian psychology played by those who pull the strings of world control.
The Great Controversy
Read this classic work by Ellen G. White.
The Destruction of Jerusalem Persecution in the First Centuries An Era of Spiritual Darkness The Waldenses John Wycliffe Huss and Jerome Luther's Separation From Rome Luther Before the Diet The Swiss Reformer Progress of Reform in Germany Protest of the Princes The French Reformation The Netherlands and Scandinavia Later English Reformers The Bible and the French Revolution The Pilgrim Fathers Heralds of the Morning An American Reformer Light Through Darkness A Great Religious Awakening A Warning Rejected Prophecies Fulfilled What is the Sanctuary? In the Holy of Holies God's Law Immutable A Work of Reform Modern Revivals Facing Life's Record The Origin of Evil Enmity Between Man and Satan Agency of Evil Spirits Snares of Satan The First Great Deception Can Our Dead Speak to Us? Liberty of Conscience Threatened The Impending Conflict The Scriptures a Safeguard The Final Warning The Time of Trouble God's People Delivered Desolation of the Earth The Controversy Ended
Is the Bible True?
If archaeology and prophecy have proven the Bible to be true, then why is it a point of so much controversy?
Archaeology Confirms the Bible Studying Scripture Scripture is Inspired by God The Lost Books of the Bible
Who is Jesus?
Is Jesus really who He says He is?
Did Jesus Ever Exist? Was Jesus the Messiah? Is Jesus God? Jesus: The Mercy Seat Is What Christianity Teaches True? Why Did Jesus Have To Die? Six Purposes for Christ's Life and Death on Earth The 70-Week Prophecy What Day Did Jesus Die? Jesus, the Recycled Redeemer Names of Christ in Revelation
Christian Living
Consider the crucial points of the Christian life with author Wendy Goubej.
What to do About Low Self-Esteem Why Should I Study the Bible? What does the Bible have to say about money? How God Saves Us Examine the Roots God’s Supreme Sacrifice for You Conversion and Repentance A True Christian Spiritual Life What is Faith? Surrender Christian Growth God's Promises to You Baptism: the New Birth Experience
Good God, Bad World. Why?
Did God create sin? If not, where did it come from?
The Origin of Sin The Great Controversy The Prince of this Planet God's Plan to Eradicate Sin
A Day of Rest
Have you taken a day to recreate lately?
What is the Seventh-Day Sabbath? Creation and the Sabbath The Weekly Cycle Why Sunday? Sabbath FAQ
The Gospel Story
Since the beginning of time, God has communicated timely messages to the inhabitants of planet Earth. It all started in Eden, with the first Gospel announcement.
The Second Advent Movement The Beginning of the End of Time The Great Disappointment and the Birth of Adventism What are the Three Angels' Messages? Adventism and the Final Conflict
Signs and Wonders
Are miraculous signs the best way to be sure that God exists?
Supernatural Deceptions Stigmata - a sign of God or a deception?
Walking Through Daniel
Dive into prophecy and history in this chapter-by-chapter commentary of the book of Daniel.
Introduction to Daniel Daniel 1 Commentary Daniel 2 Commentary Daniel 3 Commentary Daniel 4 Commentary Daniel 5 Commentary Daniel 6 Commentary Daniel 7 Commentary Daniel 8 Commentary Daniel 9 Commentary Daniel 10 Commentary Daniel 11 Commentary Daniel 12 Commentary
Walking through Revelation
Join us on a journey through the pages of this letter from Christ to His people.
The Chiastic Structure of Revelation Is Revelation a Sealed Book? Revelation 1: Jesus, The Heart of Revelation Revelation 1 Commentary: The Revelation of Jesus Revelation 2-3: Letters to Seven Churches Revelation 2 Commentary: Ephesus, Smyrna, Pergamos, Thyatira Revelation 3 Commentary: Sardis, Philadelphia, Laodicea The Throne, The Lamb and the Sealed Book Revelation 4 Commentary: The Throne in Heaven Revelation 5 Commentary: The Scroll and the Lamb Revelation 6 Commentary: The Vision of Seven Seals Revelation 7 Commentary: The 144,000 Revelation 8 Commentary: Seven Trumpets Revelation 9 Commentary: The Bottomless Pit Revelation 10 Commentary: A Little Book Revelation 11 Commentary: Two Witnesses Revelation 12 Commentary: The Woman and the Dragon Revelation 13 Commentary: Two Beasts Revelation 14 Commentary: Three Angels' Messages Revelation 15 Commentary: Seven Angels, Seven Plagues Revelation 16 Commentary: Seven Bowls of God's Anger Revelation 17 Commentary: A Woman Rides the Beast Revelation 18 Commentary: Babylon Falls Revelation 19 Commentary: The Rider on the White Horse Revelation 20 Commentary: Millennium and the Judgment Revelation 21 Commentary: The New Jerusalem Revelation 22 Commentary: Invitation and Warning
Deceptions Today
The greatest deceptions are still being formed in society today. Secret international alliances, the mark of the Beast, the New Age, and other issues are discussed.
The Antichrist Identified Politics and the Papacy Unity at All Cost? Pentecostalism The New Age Movement Secret Societies The United Nations' Global Government What’s So Bad about Spiritual Formation? Zionism
The Second Coming of Christ
How will Christ return, and what will it mean for His people?
Signs of The Second Coming of Christ How Christ will Return What will Happen to God's People? What will Happen to the Rejecters of God? Will there be a Secret Rapture? The Seven Plagues
The Millennium of Peace
Learn about the Bible's prophecies on God's judgment, deliverance, Armageddon, and the earth made new.
Viewpoints What is the Judgment? Probation and God's Promises Consequences Begin Deliverance and Armageddon Satan Bound God's People will Judge Postmillennial Return of Christ The Resurrection of those who Reject God The Crowning of Christ The Punishment for those who Reject God The Earth Made New
Spiritual Gifts
Learn from Paul as he teaches the Corinthian Church about spiritual gifts.
Understanding 1 Corinthians Pagan Practices 1 Corinthians 12: Spiritual Gifts What are Spiritual Gifts? Defining the Spiritual Gifts A Lesson in Love Dealing with Tongues Prophecy: God's Guiding Gift
The Mystic Realm of Death
Is there more to death than the fact that it is the opposite of life?
Death: Understanding the Terminology A Biblical Understanding of Death The Resurrection of Lazarus Spiritism Hell and Purgatory An Immediate Afterlife? The Parable of Lazarus
Excitotoxins cause physical and spiritual destruction. Learn about the main types of exitotoxins and what can be done to avoid them.
Aspartame MSG: Is This Silent Killer Lurking in Your Kitchen Cabinets
Is a Little Wine Good for the Heart?
Reports show that red wine may be beneficial to heart health. Is that a good enough reason to start drinking alcohol?
Is a Little Wine Good for the Soul?
The Dairy Controversy
Get the truth about lactose, calcium, and the need for caution around dairy products.
Drink Milk? Udder Propaganda Lactose Intolerance Calcium
Poisoned Meats
Today's meat and dairy industries are focused on profit rather than health.
The History of the Human Diet
Genetically Modified Foods
The agriculture industry is fast becoming reliant on genetically modified foods. Learn the facts about GMOs and the effects this trend is having on health worldwide.
Soy Safety Summarized Still Eating Genetically Modified Foods? The Big GMO Cover-up
Refined Grains
Most of the bread products consumed today are made of refined grains. Are our breakfast cereals and "fortified" loaves as healthy as we like to think?
The Gluten Connection: Weighing in Against Modern Wheat
Do the stimulating benefits of coffee really outweigh the costs?
America's Number One Drug Problem—Coffee Caffeine
Sugar—Affecting the Body and Mind
Refined sugar is addictive, destructive, and devoid of any nutritional value. Why does it continue to be a staple food across the world?
Sugar and Mental Illness Eating Sugar is Worse than Eating Nothing at All Sugar Substitutes The Truth About Evaporated Cane Juice
Can You Beat the Nicotine?
Smoking leads to massive amounts of sickness and death every year. Can you beat the nicotine?
Kicking the Tobacco Habit Nicotine and Depression
Necessary Treatments?
From mammograms to prescription drugs, the modern medical industry is always presenting a new way to diagnose and solve health issues. But are these new treatments really healing anything?
Mammograms or Thermal Imaging? How to Kill a Cold, Starve a Fever Many Doctors Ignore the Root Cause of Cancer Are Hospital Births or Home Births Safer? Compromise in the Pharmaceutical Industry Hepatitis B Vaccines Mercury Poisoning from Amalgam Dental Fillings Tylenol, the tip of the iceberg
Deathtraps in the Cosmetics we Use
There isn't one person I have ever met who knew anything about cosmetics, and that is because the chemistry of cosmetics has always been cloaked in secrecy.
Find practical ideas for dealing with depression in these articles about symptoms and treatments.
Diseases of the Mind SAD and Bright Light Therapy
Get Healthy!
We are surrounded by unhealthy foods, unwise practices, and even harmful medical advice. Learn how to overcome these obstacles and choose a healthy lifestyle.
The Eight Laws of Health "You've Changed" When Sin Has Nothing To Feed Upon Physical and Spiritual Health Use it or Lose it! Living off the Land An Attitude of Gratitude Serving Others A Healthy Attitude The Healing Power of Honey Iron in the Vegan Diet Healing
Helpful Health Charts
These graphs and tables can help you jumpstart your health routine.
Sources of Calcium - Chart Animal Products and Food-borne Illness Chocolate and Carob Compared Compatible Combinations of Plant Foods - Graph Acid and Alkaline Ash Food Groups - Graph Schedule for a Healthy Lifestyle