You must disclose at the time of booking any medical condition that could affect your ability to do the Inca Trail trek. Peru Treks reserves the right not to accept a trek booking if we feel that a medical condition may put your life or the lives of any of our trekking staff or other clients at risk on the trek. People with heart conditions, knee problems, severe asthma or pregnant should not participate in the trek. People with mild asthma / diabetes will have to consult their doctors and follow their doctors advice. They will also be required to be accompanied by a trekking companion on the trek at all times who will trek at their sides and be familiar with any medicines required in case of an emergency. Peru Treks reserved the right to cancel the trek booking of a client if the client has not fully disclosed at the time of making a booking a medical condition that may pose a risk to the health of the client and/or other trekkers. No refunds will be given in this instance. Due to the nature of the remote geographical location of the trail and the lack of suitable nearby medical facilities along the trail Peru Treks will not accept any responsibility, either directly or indirectly, for any problems due to your special dietary requirements / medical condition. Clients proceed at their own risk. We suggest that you check with your doctor before booking the trek.