If your father got the CBD oil through a medicinal marijuana program/with the help of a doctor then yes, having something like a marijuana card would be ideal. Having said that, you don’t need to do this because TSA officials in the US don’t care much about CBD or other marijuana products, and Spain is also tolerant of marijuana/CBD products. They would have to have a reason to check your father’s carry on (highly unlikely) and even then likely won’t care about the CBD if they find it.

A study published by David Cheng, Postdoctoral Scientist, Neuroscience Research, University of New South Wales, NSW, Australia, says that CBD has a potential as a preventive measure against symptoms of Alzheimer’s. This presents yet another exciting development for medical researchers, given the persistent challenges to finding effective solutions for this condition.
This is likely why CBD is capable of stimulating appetite among people that are in dire need of nutrition (such as cancer patients on chemotherapy), while at the same time suppressing appetite in those who need to lose weight. The active compound helps keep the body in balance, so if you need weight gain it can help you eat, but if you are overweight, it may be able to help curb your desire to chow down.
Before using CBD for weight loss, it is vital to ensure that you are using a quality product, as this has a significant impact on how much it can aid you in losing weight and maintaining what you lose. A company using domestically sourced organic hemp that has been grown in clean soil is your best choice. You also want to make sure third-party lab testing is done on a regular basis and that the extraction methods used in the manufacturing process are clean and solvent-free.
Full-spectrum: If you're going to represent a CBD brand, it should be a brand that is full-spectrum. Unlike CBD isolates, full-spectrum CBD products contain a wide variety of beneficial cannabinoids, vitamins, minerals, fatty acids, protein, chlorophyll, terpenes, flavonoids, and fiber that, when combined, produce enhanced results (also known as the entourage effect). A 2015 study entitled “Overcoming the Bell-Shaped Dose-Response of Cannabidiol by Using Cannabis Extract Enriched in Cannabidiol" found that full-spectrum CBD was more effective than isolates in treating inflammatory conditions. Choosing a full-spectrum product gives your customers better results. It's that simple.

CBD hemp oil is the product derived from the hemp plant, which is high in CBD (cannabidiol) and low in THC (tetrahydrocannabinol). This oil has received a large amount of attention in recent years, due to the growing wave of marijuana legislation and debate in many countries, including the United States. While cannabis and smoking marijuana (which often has a high level of the psychotropic compound THC) is still illegal in many places, as more is being learned about CBD, and its potential effects on health, it is becoming more and more accepted as a legal and safe remedy for a wide variety of health conditions. Since it has a minimal amount of the psychotropic compound THC, use of this oil does not result in a traditional “high”, so its effects are generally considered therapeutic, not mind-altering.
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