
The blood type diet, popularized by Dr. Peter D'Adamo, suggests that eating certain foods based on your blood type can improve your health. While the diet has gained popularity, it is not based on scientific evidence. According to D'Adamo, individuals with type O blood should focus on eating lots of protein and may want to limit wheat, corn, legumes, kidney beans, and dairy products. So, when it comes to cheese, which cheeses are considered okay for those following the O blood type diet?
| Characteristics | Values |
|---|---|
| Scientific Evidence | There is little to no scientific evidence supporting the blood type diet. |
| Recommended Foods | Lean meats, fish, vegetables, fruits, olive oil, and high protein foods. |
| Foods to Avoid | Wheat, corn, legumes, kidney beans, dairy products, caffeine, and alcohol. |
| Supplements | Vitamin D, omega-3 fatty acids, and probiotics. |
| Exercise | Vigorous aerobic exercise is recommended. |
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What You'll Learn
- Dairy products like milk, cheese, and yoghurt should be avoided on the O-positive blood type diet
- Some cheeses that can be consumed are mozzarella, ricotta, cottage, feta, and farmer cheese
- People with O-positive blood may have difficulty digesting lactose, the sugar found in dairy products
- Lactose intolerance can lead to digestive issues such as bloating, gas, and discomfort
- Opting for dairy alternatives such as almond milk, soy milk, or coconut milk is recommended

Dairy products like milk, cheese, and yoghurt should be avoided on the O-positive blood type diet
The O-positive blood type diet, also known as the BTD or blood group diet, was popularised by Dr Peter D'Adamo, a naturopathic physician and author of the book 'Eat Right 4 Your Type'. This diet suggests that your ABO blood group determines the best foods for you to eat. According to the diet, people with type O blood should focus on consuming more protein, similar to a paleo or low-carbohydrate diet. D'Adamo also recommends taking supplements and pairing the diet with vigorous aerobic exercise.
However, it is important to note that there is limited scientific evidence supporting the blood type diet. While some studies have found potential benefits of the diet, they are unrelated to blood type. For example, a 2014 study suggested that the diet's emphasis on whole foods and avoiding processed foods, along with exercise, may contribute to its popularity. Nevertheless, a systematic review in the American Journal of Clinical Nutrition concluded that there is currently no evidence to support blood type diets.
Despite the lack of scientific evidence, some people choose to follow the O-positive blood type diet and its recommendations. According to this diet, dairy products like milk, cheese, and yoghurt should be avoided. While yoghurt is considered beneficial for those with type AB blood, it is not recommended for those with type O blood. This is because the blood type diet categorises foods based on the diet of our ancestors, and type O, known as Hunter, is believed to be the oldest blood type that thrived on a high animal protein diet.
It is worth noting that dairy is an important source of calcium and vitamin D, especially for children, and its avoidance could be harmful to their growth and development. As with any diet, it is essential to consider individual nutritional needs and preferences. While the O-positive blood type diet may work for some, it is not a one-size-fits-all approach, and it is always recommended to consult with a healthcare professional or registered dietitian before making significant dietary changes.
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Some cheeses that can be consumed are mozzarella, ricotta, cottage, feta, and farmer cheese
The blood type diet, popularized by Dr. Peter D'Adamo, a naturopathic physician, suggests that eating certain foods based on your blood type can improve your health. According to this theory, people with type O blood should focus on eating lots of protein, similar to a paleo or low-carbohydrate diet. While this diet has gained popularity, it is important to note that it is not based on scientific evidence, and there is little scientific research to support its claimed benefits.
Some cheeses that can be consumed as part of the O-positive blood type diet include:
- Mozzarella: A soft, white cheese made from buffalo or cow's milk. It has a mild, slightly sour taste and is often used in pizzas, salads, and sandwiches.
- Ricotta: A fresh Italian cheese made from whey left over from the production of other cheeses. It has a mild, creamy taste and a soft, grainy texture. Ricotta is commonly used in lasagna, ravioli, and other pasta dishes.
- Cottage Cheese: A fresh cheese made from cow's milk with a mild, slightly tangy flavor. It has a creamy, lumpy texture and is often used as a spread or dip, or added to salads and baked dishes.
- Feta: A traditional Greek cheese made from sheep's or goat's milk. It is salty, tangy, and crumbly, and is commonly used in salads, pastries, and savory dishes like spanakopita.
- Farmer Cheese: A pressed curd cheese made from cow's milk with a mild, nutty flavor. It has a semi-soft, slightly crumbly texture and is often used in sandwiches, dips, or as a topping for vegetables and crackers.
While these cheeses are generally considered acceptable for the O-positive blood type diet, it is always recommended to consult with a healthcare professional or a registered dietitian before making significant dietary changes.
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People with O-positive blood may have difficulty digesting lactose, the sugar found in dairy products
The blood type diet, popularized by Dr. Peter D'Adamo, suggests that people with different blood types should eat different foods. According to this theory, people with type O blood should focus on consuming more protein, similar to a paleo or low-carbohydrate diet. D'Adamo also recommends pairing this diet with vigorous aerobic exercise and taking supplements. However, it is important to note that there is limited scientific evidence supporting this theory.
For people with O-positive blood, specifically, D'Adamo suggests avoiding dairy products like milk, cheese, and yogurt. He claims that individuals with O-positive blood may have difficulty digesting lactose, the natural sugar found in dairy products. Lactose intolerance can lead to digestive issues such as bloating, gas, and discomfort. These symptoms occur because the undigested sugar molecules in the large intestine produce more water and gas, which can cause diarrhea and pain.
If you suspect you may have lactose intolerance, it is recommended to consult a healthcare provider. They can help you determine if lactose is affecting you and provide guidance on adjusting your diet to avoid any digestive symptoms. While lactose intolerance is not a disorder, it is a natural variation in how our digestive systems work. It is important to note that many people with lactose intolerance can sometimes tolerate small amounts of lactose.
To accommodate lactose intolerance, alternatives to dairy products are recommended. These include almond milk, soy milk, or coconut milk. Additionally, according to D'Adamo, people with O-positive blood may be more sensitive to the stimulating effects of caffeine and may have a lower tolerance for alcohol. Therefore, limiting caffeine and alcohol intake may be beneficial for individuals with this blood type.
Overall, while the blood type diet suggests specific dietary restrictions and recommendations based on blood type, it is essential to consult healthcare professionals and registered dietitians for personalized advice and to ensure your nutritional needs are met.
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Lactose intolerance can lead to digestive issues such as bloating, gas, and discomfort
The blood type diet, popularized by Dr. Peter D'Adamo, suggests that people with type O blood should focus on consuming more protein, akin to a paleo or low-carbohydrate diet. While this diet has gained popularity, it is important to note that it lacks scientific evidence and has been debunked by several studies.
Now, let's discuss the impact of lactose intolerance on digestive health. Lactose intolerance is a condition characterized by the inability to break down and absorb lactose molecules in the digestive system. This occurs due to a deficiency of the enzyme lactase, which is responsible for digesting lactose, a sugar found in milk and milk products. Lactose intolerance can lead to digestive issues, including bloating, gas, and discomfort.
Bloating is a common symptom of lactose intolerance. It occurs when undigested lactose molecules attract water and cause an increase in fluid volume within the intestines. This can result in a distended abdomen and a feeling of fullness or tightness in the stomach.
Gas is another frequent symptom associated with lactose intolerance. Undigested lactose molecules in the large intestine are fermented by bacteria, producing gas as a byproduct. This can lead to flatulence, as well as abdominal pain and discomfort.
The discomfort associated with lactose intolerance can manifest in various forms, including stomach cramps, nausea, and intestinal discomfort. These symptoms may vary in intensity and duration, depending on individual factors such as the amount of lactose consumed and the severity of lactose intolerance.
While lactose intolerance itself cannot be treated, digestive issues and discomfort can be managed through dietary modifications. Reducing the consumption of dairy products or opting for lactose-free alternatives can help alleviate symptoms. Additionally, individuals with lactose intolerance can consider supplementing their diet with lactase enzymes to aid in the digestion of lactose.
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Opting for dairy alternatives such as almond milk, soy milk, or coconut milk is recommended
The blood type diet, popularized by Dr. Peter D'Adamo, suggests that people with type O blood should focus on consuming more protein, akin to a paleo or low-carbohydrate diet. However, it's important to note that this diet is not based on scientific evidence, and there are limited studies supporting its claimed benefits.
When it comes to dairy alternatives, almond milk, soy milk, and coconut milk are popular choices. These plant-based options are suitable for individuals who are lactose intolerant or prefer a vegan lifestyle. Almond milk is made by blending almonds or almond butter with water, resulting in a creamy milk alternative that is lactose-free and vegan. It has a low-calorie count, with only about 39 calories per cup, but it contains just 1 gram of protein. Many brands fortify their almond milk with calcium, potassium, and vitamins A, D, and E to boost its nutritional profile.
Soy milk, on the other hand, is derived from soybeans and filtered water. It stands out for having a similar protein content to cow's milk while offering half the calories, fat, and carbohydrates. Soy milk is naturally free of cholesterol and low in saturated fat. It can also be fortified with calcium, vitamins A, B-12, and D, making it a nutritionally dense option. However, soybeans and soy products, in general, are common allergens, so caution is advised for those with allergies.
Coconut milk, made from filtered water and the white flesh of brown coconuts, has the lowest carbohydrate content among these milk alternatives. While it doesn't contain any protein, it is often fortified with calcium and vitamins A, B12, and D. Coconut milk is a good choice for those counting calories, as a cup of unsweetened coconut milk contains 45 calories and 4.5 grams of fat.
Opting for these dairy alternatives can be beneficial for those with dietary restrictions or allergies, as well as those seeking to reduce their calorie intake or avoid lactose and dairy products. However, it's important to remember that each type of milk has its advantages and disadvantages, depending on individual needs and preferences. Some people may prefer the taste of certain alternatives, while others may prioritize nutritional content or environmental considerations, such as the water usage associated with almond cultivation.
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Frequently asked questions
The blood type diet suggests that eating certain foods based on your blood type can improve your health, helping you avoid common viruses and infections, lose weight, fight diseases like cancer and diabetes, and slow down ageing.
According to the O blood type diet, individuals with O-positive blood may have difficulty digesting lactose, the sugar found in dairy products. Therefore, opting for dairy alternatives such as almond milk, soy milk, or coconut milk is recommended. However, some sources suggest that goat cheese, mozzarella cheese, cottage cheese, ricotta cheese, and feta cheese are ok to eat.
Foods to be avoided on the O blood type diet include kidney beans, caffeine, alcohol, wheat, corn, legumes, and dairy products.
The theory behind the blood type diet is that your body digests food better if you eat the foods that were common when your blood type evolved. For example, according to the diet, early humans commonly had type O blood and were hunters who ate mostly meat.





























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