About Miso
Miso is a traditional Japanese seasoning that is produced by fermenting soybeans with salt and a type of fungus known as Aspergillus oryzae, also known as Koji. The fermentation process can take anywhere from a few weeks to several years, and the result is a thick paste with a rich, complex flavor that is both salty and umami. Miso is a fundamental ingredient in Japanese cooking, and is used in a wide variety of dishes, including miso soup, ramen broths, marinades, and sauces.
Miso is rich in protein, supporting muscle growth and repair, and is a good source of various vitamins and minerals, contributing to overall health. It is also high in sodium.
Lysine Considerations
Lysine is a important amino acid that is a necessary component for protein creation. It's one of the nine amino acids that the body can't produce, so it must be included in our diet.
Lysine has different roles in the body, such as aiding in growth, healing, energy production, immune function, and the production of collagen.
Research indicates that lysine may have an impact on the herpes virus, which is responsible for cold sores and genital sores. Taking lysine supplements or using lysine cream could potentially prevent or treat these infections by slowing down the amino acid arginine, which the virus requires for growth.
Miso paste contains 478mg of lysine per 100g. Lysine is an essential amino acid that supports protein synthesis, collagen formation, and immune function.
Arginine Considerations
Arginine is a important amino acid that the human body uses to build proteins.
Arginine has a variety of functions in the body, including wound healing, helping the kidneys remove waste products from the body, and maintaining immune and hormone function.
Arginine also plays a role in the replication of the herpes virus, making it a key factor in cold sore outbreaks. The herpes virus requires arginine to grow, replicate, and create new herpes viruses. Foods abundant in arginine, such as nuts and chocolate, may increase the frequency and severity of these outbreaks.
Miso paste contains more arginine than lysine, with 785mg of arginine per 100g. Arginine is a semi-essential amino acid that plays a role in several bodily functions, including wound healing and immune function.
Lysine-Arginine Ratio Analysis
The lysine-arginine ratio in a food item reflects the relative quantities of these two amino acids. Both lysine and arginine are essential for protein synthesis and various other bodily functions.
They, however, have opposing effects on the herpes simplex virus, which causes cold sores and genital herpes. Lysine can prevent the replication of the virus, whereas arginine can stimulate it.
Thus, a diet rich in foods with a high lysine to arginine ratio may help lower the occurrence and severity of herpes flare-ups.
Foods that have a high lysine-arginine ratio include dairy products, fish, poultry, fruits, and vegetables.
These foods can provide the body with enough lysine to compete with arginine and inhibit the virus from replicating and causing symptoms.
Because Miso contains slightly more arginine than lysine, reducing its consumption may help people who suffer from herpes, as it may lower the viral activity.
Miso contains more arginine than lysine, which can be undesirable for those who are prone to cold sores and herpes outbreaks. This is however unlikely to have an effect on the overall lysine-arginine ratio in one’s diet, unless consumed in very large amounts. A serving size of miso paste to make soup is usually not enough to be of concern.
Nutrient Density & Portion Control
Nutrient density is a measure of how rich a food is in amino acids relative to portion size. We calculate it as (Lysine + Arginine) / 100, which gives you a quick sense of how much total amino acid content is packed into each 100g serving.
Miso has a medium nutrient density (12.63), which is a good balance. You can enjoy this food in moderate portions without needing to be overly restrictive. It's a solid choice for herpes management when paired with other lysine-rich foods.
💡 Tip: Use the density metric to quickly gauge portion control. High-density foods are nutrient-dense and should be enjoyed mindfully, while low-density foods give you more flexibility in serving sizes.
Dietary Considerations for Herpes Management
Category Overview
Soups and broths can be made from different types of proteins and vegetables, such as chicken soup, vegetable soup, or tomato soup. Soup is generally healthy and a good source of lysine, especially if it contains poultry or seafood, which are abundant in lysine and not very high in arginine. That said, some soups may have a higher arginine content if they are made with mainly grains and cereals, such as corn, barley, or rice. These ingredients can increase the arginine-lysine ratio in the soup and make it less beneficial for people with herpes. Because of this, soups should be chosen carefully and preferably contain more lysine-rich foods than arginine-rich foods.Practical Recommendations
As well as eating foods that have a high proportion of lysine to arginine, you can also adopt some other dietary habits to deal with herpes outbreaks. For instance:
Eating a balanced and nutritious diet that supports your immune system and reduces inflammation. This means consuming plenty of fruits, vegetables, whole grains, lean protein, and healthy fats, and avoiding processed foods, added sugars, alcohol, and caffeine.
Drinking enough water to keep yourself hydrated and remove toxins from your body. Water can also help prevent dryness and irritation of the skin and mucous membranes, which can result in fewer outbreaks.
You may want to take l-lysine supplements. L-lysine is known to prevent herpes outbreaks and it can help stop a cold sore in its initial stages by "starving" the virus of arginine before it has a chance to cause a cold sore.
Taking other food supplements that can improve your immunity and protect your cells from oxidative stress, such as vitamin C, zinc, selenium, and antioxidants.
Your immune system can be weakened and inflammation can be increased by foods that can cause allergic reactions or sensitivities, such as gluten, dairy, nuts, eggs, or shellfish. Avoid these foods to prevent outbreaks.
Pain, swelling, and itching can be reduced by eating foods that have anti-inflammatory, antiviral, and antibacterial properties, such as honey, plain yogurt, aloe vera, and chamomile tea. These foods can also help you heal faster by promoting tissue repair.
Is Miso Safe for Shingles?
Caution advised: Miso is arginine-dominant. With a lysine-to-arginine ratio of 0.61, this food contains more arginine than lysine.
Arginine can fuel VZV replication by competing with lysine for absorption. Arginine-rich foods can potentially trigger VZV reactivation in susceptible individuals. This doesn't mean avoiding Miso entirely—it means being intentional about portions and pairings.
Strategy: If you enjoy Miso, consume it in smaller portions and always pair it with lysine-rich foods. For example, combine nuts with cheese, or legumes with chicken. This approach keeps your overall amino acid balance tilted toward lysine.
⚠ Requires Caution: This food is high in arginine. Monitor your intake and pair with lysine sources to maintain dietary balance.
Medical Disclaimer: This information is for educational purposes only and should not replace professional medical advice. Always consult a healthcare provider before making significant dietary changes, especially if you have active shingles or a history of herpes infections.
Is Miso high in arginine?
Miso contains 785.00mg of arginine per 100g serving. This is considered relatively high. If you're managing herpes, monitor your intake of high-arginine foods.
Can I eat Miso if I have herpes?
Yes, you can eat Miso. However, the key is understanding its lysine-arginine ratio (0.61) and balancing it with lysine-rich foods. Consult with a healthcare provider about your specific dietary needs.
What is the lysine-arginine ratio of Miso?
The lysine-arginine ratio of Miso is 0.61. A ratio below 1 means arginine is more abundant. This ratio helps determine how suitable it is for herpes management.
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